She knows she hurt you... trust me. My W is very aware of the fact that she hurt me. You know what though.. it's my fault. That's right.. I'm to blame. At least from her perspective. So brining that up will only bring that monster to the table. Not worth it.
Also.. by letting her know you "really do know what happened" will be an insult as you've been snooping on her. That makes them run with their hair on fire screaming. DON'T DO THAT!!!
IF she confronts you about the call, like Mark said.. you had to confirm your thoughts. Prepare for the blame game. But this is where you can say "I forgive you". Don't push it.. don't beg plead etc, because she'll see it for maybe what it is???
You sound like you are possibly in the stage of bartering. "I'll forgive you.. just come back" They can sense that a mile out. If you get the opp... say it, but don't repeat and don't dig in.
