Your opponent likely has QT and wants a free card or has Jx, if he's real frisky he has 88 or less. I'd also reraise this flop to $3 though. But really lots of cards can come off that will make you feel uncomfortable about your hand and being OOP doesn't help. Well played I say.

I didn't see you only had $4.42 to bet with on the flop, so this is definatly an AI here.