Fishing to find a flopcall?

[villains_hero]

Button opens, SB folds, Hero calls with 7h6c.

Flop JJ5, 2 hearts

Hero checks, Button bets, Hero?

Buttons opening range is 40%, he is aggro preflop and somewhat passive postflop. In the hand I called because I knew that villain will check the turn if he missed the board. Is that enough reason to call?

How would it affect this spot if villain bet every turn?

Stove says, our equity on the flop against a 40% range is 23%