Hi,

Vilain is unknown (I have almost no stats on the playerpool), he is not playing 100bb but hard to tell if he really is a weak player.
Flop cbet with 2 overs, I can also get some value from weaker aces. 50% pot is fine I guess.
I am often not sure what to do on turns when facing a raise ( this is one of those spots), I am thinking I am too high in my range to fold, he may sometimes do this with weaker aces or random holdings.

River I feel like a nit sometimes, do we have an obvious fold?
Let's assume this is vs a reg: In that case he is only repping 44 and 55 since I don't expect a lot of flushes (Ah blocker), and the average reg is not going to flat A5 pre. I don't think a reg would have bluffs here though...

Against a confirmed weaker player it would approx. be the same I suppose, with the difference that he could now very easily have A5 or some flush. And instead we know he can be very aggro and bluff, most of his hands will be played more on the passive side.

So, is this always a fold?