So my friend about 3 months back told me she liked this guys. And honestly she hasn't had the best of luck with guys, the last couple of times I've asked her about him she said "he's a douchebag and im so done with him" which I don't know what that means but these past couple of weeks I've been joining my friend and this guy in the morning (there is a group of about 15 of us) this past weekend we were all together at her house and as a birthday gift he got her tickets to see one of her many fav artist in 4 months he is kind of flirty with me but its only the beginning so I don't know what to do and I feel as if I should back off because she told me she liked him? Although she did say she was over him? Hellp

Back off because she likes him. Or you can find yourself without many friends if you don't.

I see stuff like this and I wonder why people need to make things so complicated.

He bought her tickets. Whether he is actually dating her or not...can you not find someone else? Why step in where a friend is concerned? This tells me that you are more concerned about yourself than about your friend. She may say one thing but think something else about this guy...so why do you really feel the need to step in and take a chance at ruining your friendship over some guy? Find someone else. Why does this have to be so complicated?

Just because he is flirty with you does not mean he wants you, and if you don't like him, what's the problem? You ignore him.