I'm a very expressed INXP and my wife is a very expressed ESFJ. I've actually been lurking this forum for a few days seeking insight into our relationship because it's so tumultuos and I'm feeling pretty desperate. I found some great advice in another thread already, but I registered just to offer my experience with our relationship here.
Disclaimer: This is a pretty extreme example from unusual circumstances. It may or may not be very useful to anyone. To be honest, I'm kind of hunting for useful comments myself.
Me and my wife knew each other strictly through online chat from ages 13-17 (16-20 for her). I grew really attached to her, and up until that point she was the longest friendship I'd ever had. At that point, her life took a major downturn. She had been living oversees with a guy in a very serious relationship for about a year, when he suddenly packed her suitcase for her and sent her back to the states with nothing... not even an explanation. She has a really really shitty family who wouldn't do anything to help her. She relied on friends for a while for support, but that could only last so long. Finally, she ended up staying with a couple guys she'd met at a party who shortly began demanding "favors" for their generousity. It was already killing me to see her this way, but when she told me about this (and her plans to simply accept homelessness) I couldn't take it anymore. I convinced my parents to let her stay with us while she got back on her feet, and sent her a bus ticket.
Until that point, I'd lived a very isolated life. I wasn't at all accepted in school, had never lived near anyone I considered a friend, had never been in a relationship, and my parents had always been too busy to help me. I had 3 younger siblings, but I was too much older for them to do much with me. I was pretty socially stunted. I had a really close circle of friends online, and healthy relationship with my parents but that was the extent of my non-rejective social experience.
She hit my life like a freight train.
I thought I was just helping a friend, but I didn't make that clear to her and this was the nicest thing anyone had ever done for her. She latched onto me like a vice, in the midst of an epic emotional breakdown. She had tons of unresolved trauma from childhood abuses (there are people from her past that I would have to tear apart with my bare hands if I ever met (and I'm a pacifist)) and emotional baggage from her recent breakup that all just exploded at me. She nightmares where she would get up and run around the house from invisible terrors or see me as some kind of monster, and I would have to restrain her just to keep her from hurting herself, breaking things, or doing something else that would cause my parents to kick her out. One night I held her as she relived a horrid experience from her childhood and described it to me as it was happening.
When she wasn't having some kind of breakdown, she was dominating my life. She demanded every available minute of my time. She destroyed the few friendships that I had. She wanted me all to herself. She would sleep all day while I was at school and keep me up all night. If I wasn't at school, she couldn't bear to be in a different room from me. She described it as physically painful when I was away. She walked all over me, because I was gushing with sympathy for her, had no social skills to deal with the situation competently, was terrified of losing my longest (and soon only) friendship, and I had no time whatsoever to think things through. I lived day to day in a sort of haze for the first couple years. It took that long to start gathering a functional perspective and getting enough of a foothold on my situation that I could do more than simply react moment to moment. Everything has been a slow climb from there.
Today, we've worked through all of her traumas, and she's become a fully functional human being. She's going back to school, and I think she could even do without me. In the meantime a lot has happened. Most importantly, we've had two kids and I'm a year out of college.
She definitely has positive qualities. She's extremely dependable. When she promises something, she will bend the laws of reality to make sure she lives up to that promise. When happy, she is a wonderful person to be around, and strangely enough she's even more of a blast to be around when she's a little stressed but taking it in stride (which she's getting better at with time). She has the most bizarre but effective social skills. I'll never understand it, but she can attack a complete stranger with insults and they'll respond with friendship. She's also very very good at taking care of worldly business. She's always working to provide for others and is generally very compassionate.
However, many problems persist as a combination of her personality type and upbringing. She's still an extreme control freak. If I let her, she will control what and how I do everything every minute of my life. If I disagree with her, I have to prepare for a very long fight, or simply a day or two of repercussions. If I disagree with her on something and won't give, her favorite thing to do is punish me with a chore. If she can't control in one way, she will do so in another.
She has an infinite hunger for praise and validation. I tell her I love her dozens of times a day, and she will still occassionally complain that I never tell her I love her. She complains that I never complement her or show appreciation, except I do every time I see an opportunity and she almost always finds some way to twist it into a negative.
Her pride is like something out of Greek mythology. She can never ever show fault to anyone but me, and she demands a lot of work of me to help her maintain her image. I do lots and lots of cleaning and helping her fulfill duties she should have never taken on. If she fails at something which damages the image she wants to maintain, she has a breakdown, often cutting off contact completely with everyone else involved for days to years, depending on the circumstances.
She will never admit to it, but she's actually very manipulative. She considers herself the most up front and honest person that ever lived, but her bullheaded facade usually hides her true motives.
She accuses me of being selfish when I try to explain to her my need for time alone. Giving up sleep is the only way I can get away.
Privacy is a completely alien concept to her and always will be.
While she's very compassionate and goes out of her way for people, she expects the same in return. If she does something for someone, she will go nuts if they don't recognize and provide for her needs as well, often without her feeling she even needs to ask. I also don't feel I get the same concern from her as friends & acquaintances do.
She doesn't handle disagreement with her judgement well at all, and will very rarely discuss things.
She complains that I should be more of a man and... basically dominate her. I don't see that working out, despite her claims. Attempts to be more assertive usually end in disaster.
Our kids are turning out very very resistant to her control and it drives her crazy. To keep the peace, I often need to do things I feel are unfair to the kids. Our firstborn, especially, is turning out to be exactly like her... and it's not going so well.
In short, if you are thinking about a relationship with an ESFJ, based on my experience, you have to be extremely patient, tough, and prepared to completely dedicate yourself to them.
I personally don't know how I've managed it. I'm soon to be 27 and finding I've done very little with my life other than tend to her, and will never have the time/freedom to develop a satisfying career or any control over my own life unless I break away somehow. Unfortunately, I understand my chances of custody over the children are very slim, and a divorce would be like abandoning them to her. For now, I'm reviewing the situation and living day to day until I can figure something out... and I'm terrified of being stuck in this state for the rest of my life.