What to do in this heads up situation??

[Lmn55d]

I dont have the hand history, but the villain is a player I think is pretty solid, but i'm not 100% sure, he knows I'm good too. I open from CO-1 with TT, he 3bets from sb. Its folded back to me, i call (should I have capped??). Flop comes Q72 rainbow, he bets, i raise, he 3bets I fold. Is this fold ok? Also, should I have just called him down seeing as I didn't cap preflop.

[Bill Smith]

[ QUOTE ]
he knows I'm good too.

[/ QUOTE ]

This is probably the key statement of everything you said. By knowing you're good, he knows you're capable of doing two things:

1. Stealing a pot with a marginal raising hand from the CO.
2. Folding.

If you think his standards for reraising are pretty rigid - i.e. he would reraise only AA, KK, AK, AQs, JJ - then this is a good fold. If you think he would reraise other hands under the suspicion that your hand is marginal, and would ride that on the flop as well, then you need to call down.

In other words, I would call this down "once in a while" to keep him honest, and "more often than not" if this is a play he consistently makes against you.