That's what I would do. But I am a hard-core, old-school guy that operates (and advises others) from a position of:
Once you've been caught cheating, the burden of proof is on YOU to show that you're NOT anymore. Until you do, I'm going to operate from a position of assuming that you're still in contact with OM, or at least want to be ABLE to be, or that you've started contact with OM#2.
