My boyfriend is hanging out with other girls more than me and has been caught cheating on me with them by my bffl. What do I do?

Break it off. You have the whole rest of your life to date, and also the whole rest of your life to find someone better than him. He doesn't sound like he is interested anymore, and that is not fair to you.

Show him that you can find someone ten times better than him :)

Darling, the answer is right under your nose. Apperantly he and your "bffl" aren't good people, u shood break it up with him and her, make new dependable friends and find a guy who respects you and loved u and only you.
You're too good for those jerks, you should move on and never look back.

Don't put up with his bad behavior, find a nicer guy to be with. Kick him to the curb.