I have been had a crush on a good friend for a few months. He recently ended a long-term relationship, and about a month later I asked him out, to which he seemed really flattered and said he'd think about. A couple weeks later, he said he didn't think of me that way and it didn't seem like a good idea. More recently though, he seems really flirty and seems like he is now crushing on me. Should I try again, or would it seem desperate? Is the "ball in his court?"