Disrespected...

I have been in a relationship with my boyfriend for over a year now. It’s a great relationship other than his problem with talking to WAY to many girls. I get that he can have friendships with women, but there’s a line i draw when he is constantly talking to them and there’s so many of them. I have brought it up many times saying that i’m not going to control him and he can do whatever he wants, but that i feel disrespected and it hurts my heart. Does anyone have any advice as to what i could say to him today? I want the disrespect to end, but i also don’t want to control him.