i'd bet/fold 1.5 on the flop. worse pairs will call, the lack of betting before us means villains' higher pairs can likely be discounted, and i don't think we really mind folding out hands like AQ or whatever if they're not going to put a cent in the pot unimproved anyway.
as played i'd call turn and probably fold river - but it's probably a mistake to even call the turn if i plan to fold on a non-heart, non-A river card, so not sure about that one.