My third post today but need some advice 😞

soooo best friend of 14 years, had a crush on bro since I was 13 and he lowkey liked me back. fast forwards couple years, things get flirty and e eventually do the deed bc we in love hello.

wham bam he drops the bomb that he only did that so he could sleep w me for a BET that every dude in my year group has that…the first person to sleep w me would get some bag Bc Im the only virgin or whatever.

hello what. what do I do tf 😭 I feel like I’ve been betrayed or somethng

English not my first language sorry