It sounds frustrating. Just when you thought you were away from it, he's now on your train again, being all cute and ignoring you. Grr. I've been in that kind of situation, but it was at the health food grocery store, and while they were polite (and super cute), I couldn't deal with the frustration of nothing happening, so I just stopped going and found a different one.

Maybe find someone else to have a crush on? Idk. It could help take your mind off him. Or write poetry about it, make art. I feel your pain.