I don't hate the call on the flop since there are 6 people in the hand and it's early in the tournament. You'll need to be careful on a flush though, Ahxh is a possibility (Marie?). A raise to about 270-300 on the flop to isolate Mervert would have been a more aggressive play if you were willing to risk the tournament at this point.

As mentioned by Art, nothing in your play suggested a set or str8. Slowplaying one of those with all of the draws available would have been asking for trouble. Mervert is getting 2-1 to call a suspect all-in, I'm guessing he showed you J9 and took the pot.