deep 100 nl hand

6 max on UB. about 200BB deep. Villain has been somewhat aggressive. 3bets light pf, esp from the blinds. likes to make aggressive moves, but seems kinda good. We have played a fair amount against each other. I have taken to pushing over his 3bets (at 100 BB deep) with good-decent hands 1/2 the time. this has really slowed him down pf.

I am MP w/ 68o, and raise to 3.5. opp calls from Button.
flop: 685 w/ 2 diamonds. I lead for $5, opp raises to 26.....

I'd raise again to about 60 or 70ish. He's agro enough to be testing to see if you're on a c bet. Raising will tell you exactly where your at and make a draw decide if he wants to play for his stack with it. I don't know if I'd call a push though this deep.