Won’t stop bragging about height.

I been newly dating this guy and he’s very sweet and treats me well, But he won’t SHUT UP about his height. He was telling me about how his mom asked him to go vegan with her and how he said “i’m 6’5 what am i gonna do with vegan food” Or I told him one day he can drive my car and he said “I probably can’t even fit” I was like what?? You aren’t a giant... I was like my car is actually bigger than yours ... It just seems like he’s constantly bringing it up and it’s rlly getting on my nerves. He’s a great guy, but it’s like I can see that your tall you don’t need to keep telling me lol what should I do?!? because I really just feel like yelling at him and telling him to stop being cocky.