overaggressive with TT?

[tl65\]

Party 30/60
Villain this hand is pretty tight, i've seen him fold a couple big pots. His numbers after about 500 hands are 13/6/1.5.

He raises from MP1, I 3-bet with TT(no [img]/images/graemlins/heart.gif[/img]) BB and MP1 call.

3 to the flop with (9.5 SB): 6 [img]/images/graemlins/heart.gif[/img],6 [img]/images/graemlins/spade.gif[/img],8 [img]/images/graemlins/heart.gif[/img]
MP1 bets, i raise, MP1 calls

Turn (7 BB): 5 [img]/images/graemlins/heart.gif[/img]
MP checkraises me and I three bet, planning on folding to a cap, but he called

River (13BB): 7 [img]/images/graemlins/club.gif[/img]
MP stalls for a long time and checks, I bet....

I originally 3-bet the turn, thinking he might make a big laydown, something like a big pair with no heart. I planned on betting the river if it was a heart and checking down a non-heart, but i read the long stall as weakness, so i bet, even though about the only hand i beat is 99 [img]/images/graemlins/heart.gif[/img]......