How do I get past what my bf said?

He told someone that he thinks two other girls are pretty and called me insane and possessive and a lot of people told me he acts like a fuckboy and tries to flirt with a lot of girls. We talked about it a week ago and he tried to justify it and didn't try to understand why I was upset about what he said.

My friends told me to break up with him because I don't trust him anymore and they thought I wouldn't be able to just move past it and that it would keep bothering me. And they were right. I love him and I love being with him but I don't even know what to do. If I tell him I'm still upset about it then he will just say that I'm annoying and he's tired of reassuring me.