Does my boyfriend get upset when...?

i don't make out with him, okay so today we've been dating for a month and im 18 he is 19 and maybe alot of times he try-ed making out with me but i don't and i don't know why i don't i made out with other guys of course but him i can, well i can but making out does something to me which i wont mention but ui do want to make out with him to make him happy so any answers to this?