I didn't date much, and now I'm married so I don't date at all.
However, I have an ENFJ sister. The dynamic is a little different with a sibling, but I'll throw in my 2 cents.
"Overflowing" is probably the best description I could give to my sister. She gives gifts as if it was a competition, she gushes with enthusiasm and affection, and she rages like a towering inferno. She's not shy about expressing herself, and she has strong opinions.
On the other hand, sometimes she's hard to read. She's guarded about her thoughts in a way that she really isn't with her feelings. I don't think she always understands me either. Sometimes she seems manipulative when she's being completely genuine and sincere. Everything about her is infused with the dramatic.
She devotes herself to her goals with dogged determination, goals that she set for herself in middle school. She shapes herself into what is necessary, physically and mentally, to reach those goals.