My Wife Left Me Today -sucks

I have been with her for 4-1/2 years just got married last month we had a beautiful wedding everything was good next thing i know she signs up on Face book she gets her best friend from 23 years ago saying hi ,since that moment she changed she started talking to him often i told her i wasnt comfortable ,well come to find out in the time when they were best friends til now he served 9 yrs in prison for 2 counts of armed robbery she tells me last week she doesnt feel the same anymore and wants to move out , i was letting her stay til friday, she tells me her girlfriend called and wants her to go see her, i said go, no big deal, my son takes the dog for a walk and down on a dead end sees her car i walk up ,remember she was at her girl friends house she had been gone for over 2 hours (right) she was on the dead end in her car talking to him on her cell
I told her thats it get out tonight-i truly feel better now sorry for rambling just bumming a little.