Ring her and talk about what happened.
Record the conversation.
If she says it was a stupid mistake and won't happen again, forget about it.
If she admits she wants to bonk your brains out and tries to set up a rendezvous, give her the option of telling him herself or you'll let him hear the recording.
She may have the second option of just splitting up with him citing irreconcilable differences without him hearing the recording.
It's best not to have him thinking, 'what's he got that I haven't.'
Record the conversation.
If she says it was a stupid mistake and won't happen again, forget about it.
If she admits she wants to bonk your brains out and tries to set up a rendezvous, give her the option of telling him herself or you'll let him hear the recording.
She may have the second option of just splitting up with him citing irreconcilable differences without him hearing the recording.
It's best not to have him thinking, 'what's he got that I haven't.'