Well, he is very interested in the hand on the flop and at all streets.
You have to ask yourself this quistion. Would he be that agressive with a set at such a board?
So, most likely he has the same hand as you have.
There is a small change that he has the sucker end of the straight, and he might full house.
In both cases ther is no real value for you in raising. If he has the sucker end it would be stupid to call.
If he has a full house you will loose more if you raise.
So the answer must be check and then if he bets, call any bet.

Peter
pokerandpleasure