I've been seeing this guy for about 6 weeks. We've been taking the relationship really slowly, but now things are starting to get somewhat physical (kissing; no sex yet) and...I'm realizing that I'm just not sexually attracted to him. He is a nice (mostly) person, but he just isn't for me. He seems to have some entitled opinions about women's place in the world (he mentioned something about certain women not being attractive, and I went on a feministing rant on how women's worth has nothing to do with whether or not men find them attractive, along with how wrong it is that women are devalued if they are not conventionally "pretty"; all he had to say was "society has a lot of problems")

He keeps trying to kiss me deeper, and I pull away. I feel guilty; he's been very patient. But I don't want to kiss him. It makes me uncomfortable. I think I might be a lesbian (I thought I was bi, but now, after this, maybe I'm not into men?). I want the opportunity to date women.

Anyway, I don't want to hurt him. I'm going to see him on Friday, and I think I will break up with him then. What should I say? What should I avoid saying? Would a simple "I'm not attracted to you" be too harsh? Maybe if I included that I am mostly attracted to women he wouldn't feel too bad about it, since it had nothing to do with him?

Thanks