HLP needed please!!?

my biggest crush likes my best friend. We've been together before (twice before) and we ended things on good terms but the reason we ended things was because of my best friend. She likes him a tiny-little bit and i think i'm in love with him, he still admits to liking me, but ever since he let me go i don't know what to do anymore. should i make a move or let things be...can you please help me?