do i have a right to be pissed?

i was at my boyfriends and we were playing board games with his roommmate and his roommates girlfriend. his one roommate is dating a girl that my boyfriend has hung out with a few times and decided they didn’t have any chemistry so they ended things. my boyfriend and his roommate said the same thing at the same time and so my boyfriend said jinx you owe me a blowjob and then said that reminds me that you still owe me a blowjob and pointed at the girlfriend. that really pissed me off and i rolled my eyes and moved away from my boyfriend. he called me dramatic and said that i’m overreacting. what do you girls think? i know that my boyfriend wouldn’t cheat and that the girl wants nothing to do with my boyfriend but it still got to me lol.