I need relationship advice?

Ok so i have a problem i really like this girl and i know she used to have feelings for me the only problem is she is now with my one of my best friends i would like to be with her but i dont want to ruin my friendship with my other friend. What should i do?I need relationship advice?
It's too late.....you had your chance and now obviously she has moved on and is with one of your best friends. It is best to move on otherwise if you do try anything it will only ruin the friendship with your best friend and really it's only over a girl. Why ruin a friendship when this girl has now moved on and doesn't feel for you in that way anymore and may not want to be with you.





If she does she wouldn't be with your friend and if she still does have those feelings for you the relationship between her and your friend won't go far and who knows what the future holds. But for now she is with your friend and has moved on and so should you....just enjoy life and have fun, take things as they come and who knows what will come down the track.I need relationship advice?
Hate to say this but if she is with your best friend then you have to leave her alone - for now. Become friends with her, let her get used to feeling comfortable with you while being with your best friend. Then some day when you are BOTH single, it may work out. Just don't overstep your boundries now. She is your best friends girl. Just one question - Why didn't you get together before when you knew she liked you? Do you like her now because she is dating your best friend and no longer available?
Back off and respect their relationship. Then, if they break up in the future, she'll know that you are trustworthy and have respect for commitment. Also, you owe it to your friend to not come in between him and his girlfriend.
Exactly what the first answer was... Your best friend should be your first priority. If they break up, then maybe... But do talk to your best friend first. But right now, stay out of it.
dont ruin your friends relationship.. you'll have to wait until they break up but you should try to date other girls while youre waiting even if its just one date that doesnt mean anything at least your haveing fun.
stay out of it. i lost my best friend because of that!
If she's already with someone, don't do a thing. Especially if the guy she's with is your friend.
I advise to do nothing unless you know it will be love and lasting. you don 't want to lose a friend for a fling. think about it.
i would respect their relationship. if it's not meant to be with them, then you can make your move if they ever call it off. it'll complicate things if you get involved.