[grizy]

Ironically I would call if big blind doesn't. but once he calls... we're faced with two very likely scenarios:
our outs are out (3s, they are teh blinds, 23 isn't impossible), someone is sitting on real AA to lock out our draws 1/3 of the time, someone got better flush draw, or some combination of such.

Only thing I want them to both turn up is 23 without hearts. I'd probably bail here unless I am feeling lucky.

EDIT for PS: just a little lucky will do. this is a pretty close fold in my opinion.