I'm a bit confused by the history here. It says that you bet on flop then there were 2 folds between you and the guy to your immediate left, which is obviously impossible. I'm going to comment assuming the only fold (before your 3-bet) on the flop was the button after MP3's raise.
MP3's stats peg him as average-passive which means when he raises on the flop he's probably got something, and not just a pure bluff. His call preflop could mean a suited connector or Ace, low or mid pocket pair, or maybe 2 decent broadway (including suited).
On the flop, his raise means he has something at least somewhat strong. Given his fold to your 3-bet the most likely hands he had there were flush draw, or weak top pair.
I like the flop bet because you could be seen as just making a C-bet and they might raise or call you somewhat light (which MP3 does). The problem with his raise is that it's small, just over a min raise. I tend to believe here that he won't continue because while that raise is showing strength, it's not so large that he couldn't get away to a 3-bet.
So, 2 things to sum up. First, while I think some hands are good to post the results with, this one isn't. By showing us what you did and that he folded to your 3-bet, we may be biased in our answer (which I think I am). Second, MP3 likes his hand but not so much that he will commit. Therefore, I recommend raising smaller to maybe 4.5. You take the risk he outdraws you but you get him to call more often.