In love with best friends girl friend. >.<?

so ive known my best friend since the 4th grade we are seniors now. so u can do the math. when we graduated 8th grade we went to diff schools and stopped talking for bout a year and a half. we started hanging out again and he introduced me to his girlfriend. they had been together bout a year i guess. well weve hung out just about every single day for the past few years and she quickly became my best friend also. ive kinda had a hard life and was going through alot dealing with another friends death, started getting anxiety and i realized i was starting to like her at about that time. well ive kept it bottled up, at one point he found out i ';like her'; and he shrugged it off. but told me NOT to tell her in the fear of making it akward when we hang out. well. about a month later i spent the weekend at his house with him her and his dad working on a landscaping project with them which was fun but little things bothered me and she ending up asking what was wrong the next week and i came clean and told her. well as it turns out she really likes me and i guess kinda noticed that im ';sexy'; lol that weekend and was turning her on n all that. so now every morning i wake up to a text from her and we chat for a bit before and while shes at work and every night before she goes to bed. weve talked about everything like how we want to be able to do little things like hold hands or kiss etc. well they have a VERY rocky relationship. hes always getting on her nerves and lately mine too..but she says shes only with him cuz the whole hes her first love and shes afraid of being alone and thats all she really knows but she wishes she had met me first...well, what do i do? im pretty confused. it bothers me to see them together but i know shes kinda happy so i suck it up. but listening to them plan out there future gets confusing cuz she sits there and not really complains but tells me everything thats wrong and how she wants to do stuff with me and then when we hang out shes all over him one minute then mad another at him then back all over him. do i just sit back and wait or just give up and try to drop it, stop talking to her and deal with the heart break and such. idk any advice would be welcomeIn love with best friends girl friend. %26gt;.%26lt;?
If you play with fire you are going to get burned. He is going to find out eventually so if you want to stay friends with him you should probably end all the flirting with her now. I think she is playing you is all. You deserve better. Why is she still with him if she wants to be with you? Try find somebody else. Anyway best of luck.In love with best friends girl friend. %26gt;.%26lt;?
Man, that's just too much to read without paragraph breaks and proper capitalization and stuff.. if you want good answers you gotta take the time to make it easy for us to understand you.