Stud8 - Is this Collusion?

[betgo]

The guy with 37244 had a good hand on 5th street and it was a good play to jam. These guys don't know you have split aces. It is likely you have a ace with a concealed pair, or maybe a 3-card low that bricked out. Whatever you have, it is hard for you to continue with your board against their boards.

The fold is OK, but you could also have just called them down. Problem is you are playing for half the pot and they both can scoop.