am i a stupid idiot?

basically i've been talking to this guy for like 2 months now and we hadn't really talked about what we are but i assumed we were exclusive and last night he randomly asks me how i would feel if he was talking to other people and i said "oh i'd be a little pissed" and i asked him how he would feel if i was talking to other people and he said "i sort of assumed you were and yeah i wouldn't be pissed"
i'm kind of miffed at him because of this statement...DID HE ASSUME I'M SOME SORT OF WHORE??? I DON'T KNOW WHY IM THIS PISSED
maybe i'm just an idiot idkkkk
and if he assumed i was talking to other people, he must also be talking to others right ughhhh idk how to feel about this anymore and i'm too much of a pussy to ask him if he IS talking to others sighhhhhhhh