Create a fake profile

Create a fake profile and log on to websites that promote cheating spouses and see if your partner’s using one of them. Or for starters, just create a fake facebook profile and add a lot of random friends to make your account seem legitimate.

And then, send an invite to your partner and get friendly with them. And over a few days or weeks, start flirting with them and see how they respond to you. Are they interested in meeting up or hooking up?