1-3

SB calls and seems to be a loose passive kind of player, and prob calling pretty wide overall
Hero is on BB w AQo no hearts, and the bttn is a bad aggro straddle

Hero raises the BB to $28 folds to SB who calls and has $160 or so

Flop J85r one heart
I check behind
turn 2 heart
he bets $25
We call

River 8
He bets $20 into $100

We need him to bluff 1/7 times for us to call and at least break even. From your experience, do you think people use a bluff for this sizing often enough to justify a call?