My boyfriend commented on this girls ass and I’m thinking about ending it here am I overreacting?

Me and my boyfriend was on TikTok scrolling watching videos this girl came up on the next video and had booty shorts on and we’re we’re only 2 seconds into the video when all of a sudden he says “DAmnn” It took me about 5 seconds to process what he was saying damn about so I asked him why he said that (because I didn’t want to assume) he starts LAUGHING and I’m sitting there just looking at him like what the hell is funny so he starts saying “sorry it’s just her butt is big I didn’t expect it” and starts to laugh some more now I’m just feeling uncomfortable and disrespected bc he’s still laughing when I’m obviously getting upset. His brother comes out his room and ask my same question on why he’s laughing he tells him and starts laughing more at this point I’m over it and I get all my stuff and gathering everything to leave he basically didn’t do anything for me not to leave knowing I just took a shower and it’s late at night. Smh while I’m getting everything he’s just sitting down Lmao. So I mean yeah I left and when I get home that’s when he decided to text me saying……”I’m sorry boo I would never say some shit like that out my mouth again I really did not mean I understand you don’t wanna talk to me or don’t believe I’m for you but I’m all in with u. Can’t believe I just fucked everything up your more then enough I’m sorry i kno it’s over just kno I love you I hope u can forgive me one day”…. And in the past I’ve always had exs make me feel insecure or invalid and would purposely try and make me jealous. And the thing is with me and my now boyfriend is we both don’t get jealous or say things to make each other uncomfortable (or I hoped) but this is new and came out of no where I don’t know what to do because I wouldn’t ever make a comment like that about another man. And I just feel so disappointed and disrespected. Please someone give me advice or tell me if I’m being too sensitive…..
My boyfriend commented on this girls ass and I’m thinking about ending it here am I overreacting?
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