should i be mad?

today my boyfriend and i were hanging out and i mentioned that i thought this girl that goes to our school is really pretty. he said that she was really pretty but i was prettier. i know that’s not true at all so i said you don’t have to say that and he said you’re prettier and cuter but she’s hotter. it kinda stung not gunna lie but he continued to say that i’m going to find some people more attractive than him and he’s going to find people more attractive than me but it doesn’t mean he doesn’t want to be with me or doesn’t love me. this just seems like the wrong convo to have with your gf but then again i did kinda ask for it. i don’t want to make this a thing i just want to know what i should do if something like this happens again?