MKAC -- I totally get this!

Yes, I find myself questioning "why do you like me?" with relationships that "feel" uneven to me. I feel that if the relationship is close enough then the other person will want/need some part of me, of who I am, in order to continue the relationship. For a long time it was sex. (and still is, I guess) What would a guy (or now, my H) want with me unless I gave him my body? That's a fair exchange, right? I mean, would my H still want me to be his wife if I couldn't/wouldn't have sex with him?

But it's not so much what I can do for another person, it's more a matter of what part of myself am I giving away to the other person in order to stay in relationship with them.