Boyfriend checking out girls?

So, I've told my boyfriend few times before that him checking out women im front of me hurts me. He said that he will change, and that's what he told me everytime I caught him drooling over some girls. Notwe: he is not just quickly glancing at them: he stares at them for even 5 seconds! I just don't want to accept that behavior, it bothers me so much and is killing my self esteem. Last night he told me ' that's a guy thing, that I can't possibly understand that' . He even told me that maybe we should break up because he keeps hurting me with stuff like this. I'm now outraged. He obviously chose checking out women's bodies before me. What would you do?
Boyfriend checking out girls?
Add Opinion