hey ive got a similar problem going on right now, except that i AM a third wheel, however i did get up the nerve to tell her how i actually felt and was surprised to find out that she also has the same feelings for me. but her BF (who is my best friend also) didnt like it very much and he tries to keep us apart, so my advise is to tell her how you feel. its a risky shot either ways. if u dont tell her and she does have feelings for u, then u could lose her, and if u do tell her how u feel and she doesnt have the same feelings, u could lose her, but from what u said it does sound like she likes u, so i would give it a shot if i were u, but its your choice, good luck