This felt weak ($1/2)

[FGators]

Stars $1/2. Villain is a maniac. I won a $400 pot with him when I was in the BB with JJ, 3 limpers. I make it $14. He is the only caller. flop is 10 7 with 2 spades. I lead for $28, he makes it $60, I decide hes nuts and shove and he calls in an instant with 88.

So anyway. villain limps in mp, button makes it $5 to go and I call with Q3 clubs in the BB with a stack of about $470.

I'm sure the preflop call is iffy but its $3 and I'm deep, so I figure it cannot be so bad. Villain in MP predictably calls.

flop: Qh 3h 8s

I lead for $15, villain calls in MP, raiser from button folds.

turn: Kh
I check (???), villain bets $20 hero calls

river: Ad

I check (???), Villain bets $50, hero calls $50.

about the river: I puke if I block and he raises because he could be doing this with a single pair...hes literally nuts..saw him raise with bottom pair against a guy who folded and he showed 810o on a 8KJ62 with 3 clubs board)

This felt weak but I wanted to get to showdown ASAP because this guy could be doing this with a ton of hands.

thoughts?