The mutual friend who for years covered for her? Same here. But I tricked her into confessing. I sent her a message one time when expwBPD was supposed to be with her. I didn’t know for sure, so I bluffed. I told her I knew expwBPD wasn’t with her, and played on her emotions by asking her why she didn’t tell me being a friend and all. She apologised and said she didn’t tell because she didn’t want to hurt me. I asked for details, she only knew his name and that they met a few months ago. I checked expwBPD’s contacts but didn’t see his name. Facebooked the guy and found his number. Used that to search contacts and saved under a different name I found his details. The creation date showed me she had his number for almost half a year. So I sent expwBPD a message asking if he knows she’s married and has a daughter. She denied and continued the lie that she was at mutual friend. I told expwBPD to give her a call. She didn’t come home that night. That was the last time I trusted her. The woman that pressed me to be honest always, was nothing but a cheat.