Caught between 2 fraternity brothers?

ok so i started having this platonic/ual relationship with this guy, then he left me for his ex. well one night me and his frat brother got drunk and ended up making out in front of the other guy. now the other guy has a problem with me and his frat brother being friends, and his frat brother is mad at him. I like this new guy, but i think both fraternity brothers like me what do you think?