I'll say this about relationships. For me, and therefore perhaps for aspies in general, honesty is really the only workable policy. To the extent that I was responsible for the horror of my longest relationship, it was because I was dishonest. I said whatever had to be said, promised whatever had to be promised, pretended to be whoever and whatever appeared necessary to woo and then keep the woman in question. Motivated by a desire to be in a relationship at all costs, against all reason, to the bitter end. Finally, she broke up with me, allowing me to admit to myself how miserable I'd been. Though I blame much of my misery on her, I must admit I enabled it by sustaining the thing. Honesty, true honesty that aspies know all too well, is one of the most fatal things to most relationships. It can cause one to not even get a date for a lifetime, let alone be in a relationship. If you doubt this, consider the typical scenario of a woman asking her significant other if she looks fat in a given dress. He is supposed to say she does not or suffer. My typical response, mostly given to women I was not with when they ask me this question, is, "Relative to what?" This has the advantage of forcing them to think about what they are saying while also not supplying an answer one way or the other. Yet, they still become angry at this answer just because a no is delayed. Think about that. Not only is she demanding dishonesty from you at metaphorical gunpoint, she's angry you're not being quick about it!
-Frank