[haz31]

I like a Check call,

Aagainst someone this aggro his range here is huge. a 80/35 is repoping AA pre almost always so AA is unlikely in his range, he has aces up here alot (you check to me on the button i have 2 pair ill make a bet just for the sake of it type thing), sometimes air/single ace, missed [censored] diamonds, sometimes he has hearts, 45 is possible i guess but very unlikely IMO.
Given he is a maniac when you check the third heart to him on the river you know he is just itching to represent, and is probably too stupid to take his free showdown with 2 pair.

If he happened to back into a flush or has a wierdly played 45 then so be it, but his river betting/bluffing range his huge enough that your ahead pretty often IMO so let him bluff at it and call up to a pot size bet.