What do I do now that he said he feels he can do better than me?

Ive been seeing a guy for the past 4 months. The problem is that I don’t see relationships as eternal, or think of an ideal partner. I love experiencing that brief growth with someone Im attracted to, regardless of how different we may seem to be. Anyway I encountered guys who are searching for an ideal or better fit so I’ve been hurt.

This guy Im seeing seemed to really like me, even more so than I liked him. Yet he told me recently that even though Im the most amazing girl he met in a very long time, he feels like there are better girls on the other side. He said when he is out and looks around on the streets he sees gorgeous girls, and because he is a perfectionist feels there are better than me basically. I don’t know what to make of this. Should I avoid this person, even just sleeping with him with no strings attached because what he said is pretty offensive and I have more self worth than sticking with him and letting him have intercourse with me?

Now he may have said this because he felt insecure with me, and thought I didn’t like him enough. I’ve distanced myself multiple times because of the lack of trust. I also recently told him after we started to get serious that I didn’t want to get serious, but that we can just sleep together.

Im puzzled by this so I’d love some insights on whether I should stop seeing him (as I’ve had enough bullets to my esteem and integrity this past year) or if he is basically a silly little boy that I shouldn’t take seriously, or if I should take him seriously…

Thanks!