Villain $2000- Raise to $40
Hero $3800 [4s2s]- Call $20
Flop ($79) 5s3c8s
Hero checks
Villain bets $60
Hero raises to $228
Villain raises to $600

I usually raise flop or turn, but decided to raise flop here this time. I assume that villain is very nutted here, has 2pr+ and sets almost always ( and like never a stronger flush draw). We have only played 100 hands but he hasn't taken very aggressive actions before. I was raising him on the flop a bit, so maybe this is a spaz and maybe he folds occasionally but I just think he has it. But I can't like fold i dont think. So flat, or shove?