Not jamming on the river but just calling ! all his actions shows strength , what is more profitable here for you with 4.5 .... ! Calling is the best option for sure , no point of risking your $$ for a risky played pot.
Calling for sure ! no point of jamming , your opponent is showing mostly strength here.And 150$ is a joke on the river for free info and to maybe win if he is trying to bluff you out of the flush he hasn't made .
I think it is correct to fold on the turn to the initial bet of $125.
The only hand we beat is AK?
If we're behind and continue, we lose two more bets. But if we're ahead, we may only win one? Is there a name for that?
I dunno.
Also, in case it's relevant. I haven't played poker in a long time, so my expectations for the game are unstable. And since expectations define reality, and I expect folding to be correct, that makes it correct. I think.