Hi,
River is likely close, it's very tough for him to call you again with a worse hand. The Q makes a lot of straights and two pairs possible, now a lot of Jx hands beat you that way, he'd have to have J7- or AJ and call a third bet with it on a 4-straight board. I think you can actually check/call it in case he wants to bluff with clubs, tho it'll be tough on you if he pots it.
Hope it helps.