[RunDownHouse]

I think you define your hand much more clearly if you just call him. You could be leading with AK hearts, other flush draws, AJ, even something like TT/JT, etc. If you call, you're saying you've either got a FD and want the turn or you aren't scared of a J.

It just seems like he could be raising you with lots of stuff you're beating, but I wouldn't expect to get action from any of it on the turn unless it went from behind to ahead.