I'm good with the pre-flop call, as his UTG raise is probably strength and your hand isn't good enough for a reraise.  He's got pretty LAGgy stats up to this point, but it's only 13 hands so you can't count on him having worse than you here.  

I like your IP donk lead after his flop check.  What's he c/calling with here?  Maybe AKo or KQo with the K of hearts.  He may also be so loose as to call you with a straight draw (QJ) on the 3-flush board (or one of them could be a heart).  Could be TP as well (AT).  

You follow through with the turn cbet, which should net you the pot there.  But his call makes him either tenacious and won't give up his draw, or he's slowplaying a flopped monster.  

Your bet sizing on both the flop and turn look like you're going for value here, like you want him to call or shove.  Maybe he has a set of 6's or 9's and is playing cautiously?  He may be planning on c/calling to the river unless he hits a fh.

I'm good with your check behind on the river.  At this point, the pot is 23,30 and he's got 27,119 behind, a perfect check/shove stack.  You beat many of his possible draws (single heart or straight draws), and his willingness to call up to this point OOP makes it seem likely he'll call any bet you make here on this inconsequential river 4.  What better hands than yours would fold to a river bet?  Just AK and AQ with the K and Q of hearts.  Maybe a weak TP with a heart (QT, KT).  So far you've been betting <1/2 pot, so to make a river bet more convincing you would've had to bet much bigger I think, maybe 2/3 to 3/4 pot.  I don't know if I would've been capable of a 3-barrel bluff of this size on the river.

One thing you could've done is show more strength pre by 3betting, then your flop and turn cbets would've been bigger and forced him to more difficult decisions on both of these streets.