“I only slept with you before him. You realize, right? So yes, it’s a big deal for me to sleep with somebody else who’s not my husband, so I had to keep a connection with him.” Make it make sense. That’s her rationale??? And we call (rightfully) Aseulo a bit dense?
There’s nothing to look up. Nor is it your job to prove a stranger’s story (who is also a known liar and marriage cheat). This is not going to be her unquestioning hall pass for her disgusting cheating.