What if my best friend's brother and I like each other?

My best friends bro and I like eachother a lot. But that's reallly ticking off my best friend. Then my best friend's friend Breanna was over and asked if he liked me. He said no. 2 days ago he said yes. what do I do? My best friend thinks he's faking it, I don't. Breanna's really pretty. And I've tried to let him go once, it didn't end well. Please help me. Please.

heh this happened to my friend..

She ended up lossing her best friend and dating the boy.. there still together but he flirts with the other girl.. so it's all messed up

To try this.

Just let him go... okay never lose a good friend over a guy. Guy's are going to come and go but play your cards right and friends will stay forever.