am i being unreasonable?

Ok so this is kinda stupid but like my boyfriend just told me he gets hard looking at other girls sometimes and like idk i’m kinda salty and ik it’s like normal for him to and stuff and like ik he watches porn and everything but like idk i’m kinda salty about it and he doesn’t understand why. Like idk this started cause he jokes about being into this girl from my class and she was presenting today on zoom and he was next to me and like motioned to his dick and made it like bounce/ move if that makes sense so then I just gave him a look like uhhhh and he goes like i wasn’t hard from her it was from you but i do get hard from other girls I see so yeah also he was like i’m sure you get wet from seeing hot dudes umm no sir i don’t... am i being unreasonable for being a little annoyed about that? it’s just not something you want your boyfriend to say to you.