I have a problem with my bff being biual. what should i do?

a couple of weeks ago my best friend came out that he was bi and it hit me pretty hard. mostly because i have feelings for him and it hurts to know that he likes a guy instead of me. it took me awhile to accept it. and the guy he fell for is a jerk. and then he's like i cant take this lifestyle anymore. so supposedly he's straight again. recently he moved out because he came out to his family and he said that because of this person he's moving out. i should be able to accept this, having already gone through it the first time. but i still cant. especially since the guy he likes this time is my favorite coworker. what should i do? should i stop talking to them both and take some time to rethink this? or should i tell them how i feel? but im afraid that if i tell him everything, im risking our friendship.