Been two tabling villain for about 50 hands; seems competent, haven't caught him act out of line yet, or any major bluffs...then this hand
hero is dealer with $508
villain bb with $494
dealt 5
6
7
2
opens to $12
villain 3 bets to $36 (7% 3bet frequency so far)
hero calls
flop a
3
4
check check
turn j
villain checks, hero bets $45, villain calls
river 10
villain checks, hero bets $65, villain raises to $277
hero?