ohhhh RegretfulLA, I'm sorry you found out all that stuff. Snooping is dangerous for that reason. I totally get how angry you are at that "friend." Nothing I suggest will help with those emotions. Just sit with them but don't act on them.
That feeling can create some very ugly events.
Take care and remember this is a problem not a crisis!
M 42 H 39 T10 (-2yrs separation) S8 D5 DD 7/30/11 (EA&PA) Reconciled 6/2013 Separation in works 1/2017