H, you are doing great. Don't wreck your efforts by focusing on whether she contacted the jerk or not.
What is your motive for wanting to know? Just to see whether or not she was in contact with him or to see if she is lying to you about. IMHO it just doesn't matter.
“Do you want to be RIGHT or want to be LOVED” “You have to have a life to share a life with someone” “When you stop resisting, you start learning”
