Difficult Turn Decision

[Mempho]

At the moment, I'll just supply villain's stats since I would like to wait for some more replies before giving results...but villain is 20.44/4.44/0.62 over 225 hands. His agression on the flop and turn has been 1.42/1.40 respectively and he has an agression of zero on the river in 14 possible actions.

The only thing to add is that this guy seems to have "followed" me from NL400 but I can't be sure. He may think of me as a mega-fish and he loves to float me...probably b/c I PFR a lot (maybe too much).