To be or not to be?

Ok, so i have a male bestfriend and a female bestfriend. I've always been closer to my male bestfriend but i try to treat them equally. Here's the problem, my female bestfriend is insanely in love with my male bestfriend. My male bestfriend has admitted to liking me for the past 3 years. I like him just as much as he likes me...but my female bestfriend doesn't know. I really want to be with him and i feel bad for always pushing him away, but then again i don't want to break my female bestfriend's heart. Idk what to do... Please help?