I don't think that the pairings are "bullshit," per-se (I've made good use of them throughout the years), but they're not fool-proof either. There are plenty of factors that will make or break a potential friendship.
In my experience, ENTPs have always been like fire. They're flashy, exciting, provocative, and full of energy. The thing is, fire consumes, and burns. ENTPs are often insatiable when it comes to stimuli and whatnot, which is why they're not my first choice for friends or romantic partners (i.e.: they can have loyalty/attention span issues). I don't fault them for that sort of thing -- it's in their nature -- but I'm not really willing to throw myself into that mix.
ENTP females have been tough for me to find at all, regardless of what their beliefs are. I'm pretty positive that I've met one female ENTP, but that's it. It sucks, because I'd be interested to see where a friendship with one would go. It'd be fun to get the ENTP experience without the issue of sexuality being in the mix (that's usually what mucks things up with ENTP male friendships).
Now, ENFPs being the "next best thing," any regular on this forum knows that I would personally disagree. :laughing:
My husband is an ENFP, so I've got plenty of experience with "settling down" with one. ENFPs can have similar issues to ENTPs (the loyalty/attention span thing), but them having aux. Fi instead of tert. Fe makes them generally calmer in that regard (emphasis on generally. You have to take all of this with a grain of salt and figure things out based on the situation). My husband was 1) raised in a very conservative environment, which ingrained a lot of discipline in him and 2) in his late 20s by the time we met, so he had mellowed out somewhat. In other words, I can't expect the ENFPs you'll come across to be in the same boat he was; willing to settle down.
But, in any case, don't let your relationships be restricted to the MBTI ideals. I've had decent relationships/friendships with pretty much all the personalities (save for ISTJs and ESFPs. Haven't gotten around to them yet; fingers crossed). Keep your mind open.