Is it weird that I want a guy to call me "beautiful" instead of "hot"?

You're right and no, it's not a weird thing. Usually, the term of being "hot" is more of a sexual compliment, which is probably why you didn't like it. You're probably confused on whether to be flattered or offended because, well, every girl likes to look good, but to get a sexual compliment like that from someone other than your own boyfriend is awkward. But Sweetie, don't stress out because of this! Just act normal and if he says it again, just tell him that you appreciate him thinking you are attractive but you don't like when he calls you "hot". Just tell him it makes you feel uncomfortable.