If you're constantly wondering why you're "not enough for him," you don't get most men. Women tend to romanticize and think if they fulfill all the roles they think a man wants them to play--wife, lover, cook, housekeeper, "slut" (although I hate that word, I'm using it to express an idea of what some men want), etc.--and men still cheat or continue their usual habits. It isn't about you doing it with him. Sometimes people (men and women, including me) just want to masturbate and fantasize without someone interrupting the fantasy, making it harder to concentrate on, and maybe not getting as much enjoyment or the best orgasm from it.

Now, if the man has an Asian fetish, it might mean that he really wants an Asian girl, and you're great while you're there, but if he had a choice of a hot Asian woman or you, he would probably choose the Asian. My guy likes Asian women, so I get it. I'm not his type, really. Yet we've been together for going on 20 years. (It's complicated.)

You should work on your own insecurities, because that's the problem you're having. You want to be "everything" to a man, but you haven't found the man who considers you everything. I'm not telling you to leave, but you might have to accept him as he is.