Given his history of cheating before, these comments are inconsiderate for sure, even if he hasn't cheated. I suppose these hypothetical fantasies are very common but most people wouldn't think of telling their partner. It would be in their fantasies and stay there. Maybe he been watching too many videos. I would ask him -what makes you so desirable that a famous person or 2 oriental women would want him. Another thing - what's the deal with the oriental women - oh yes I forgot ...porn videos lol (dripping with sarcasm).

I think you should drop him like a hot potato out of oven and tell him to look for that famous person, who'll never want him. Let him live in his fantasy world, so all he'll be able to do is play with himself. Yes your feelings are justified.