Cohorting, is it a word? if not what should I use instead

In this context, I’m trying to express that Seamus accidentally was frolicking with the enemy.
I guess a better way to say it is unintentionally interacting.

Domá turned to Seamus, “So let me get this straight. On your first day
back in Ireland — you got caught by Vikings — lost Josie and Bally— and
almost got yourself killed. Not to mention cohorting with both of my
enemies and their conjurer. Does that sum it up?”