Yeah, i just wonder if it's worth cheching back and letting him maybe bluff otr, or catch some weaker flush to make a bet or call one. OTT we pretty much have the nuts, but it's also a scare card to all of his weak one pair hands, draws and would be difficult to continue with them oop on this board
If he has a King with out a heart you might get one more street of value when you bet turn while if you check and river is 4th heart he usually folds.
If he has a pair with a heart he almost always call turn and probably call river if he hits his flash.
If he has a flush you still have outs to the nuts.
Only reason we might consider to check turn is because we dont like to get raised in case he has flopped a flush but still i think we are deep enough to call turn and reevaluate river.