<human>: I think my boyfriend has become way too comfortable with me and our relationship and this is making me uncomfortable. 

I am 23f and he is 26m. We have only been dating for two months but he seems to have become way too comfortable with me. First off, I am bisexual and this is no secret from him. Every now and then I'll make a comment about a girl who walked by or a waitress but never anything more than "she was cute." He, however, has been constantly checking other girls out (which is natural of course) but has had the nerve to say things such as "I want to (nsfw comment) her" and going into detail. I have since stopped making comments about other women and definitely NOT commenting on other men, yet he continues. I can't tell if this is just a test to see my reaction or if he honestly doesn't realize the lack of etiquette here. I don't care that he looks at other women but I definitely don't want to know the dirty thoughts that come to his mind.

Also, he has been talking more and more about his ex-girlfriends recently. I make it a point to NEVER talk about an ex unless directly asked. I didn't mind hearing tidbits of his past, however, when he went into detail about a girlfriend cheating on him because he didn't sleep with her for a while or how great his most recent ex's legs were, that kind of pissed me off. 

I haven't mentioned any of this to him because I can't tell if I am overreacting or not. I am seriously not a jealous person but for some reason his comments just get to me. Reddit, please tell me I am overreacting or if my boyfriend is an asshole. I really don't know how to bring it up to him without sounding like a jealous crazy person!

Can you provide a brief overview of the text?
<bot>: my boyfriend blatantly makes comments to me about other girls and ex-girlfriends and I can't tell if I am in the right or if I'm just crazy and need to get over it