Standard overpair question

[henne822]

Playing 1/2 on UB.

I am UTG+1 with KK, Villian is UTG. He has 350. I cover. Pre-flop he raises to 7. I go to 22 holding KK. Board comes QQJ rainbow. He open shoves. In this situation I would normally call but given the face he didnt play a pot in an hour I folded. How often does he have AA, AQ, JJ here? I dont think he made this move with AJ or an underpair. Thoughts? Am I just a pussy?