My wife of 7 years has been sleeping with a warrent officer on post near my house. I've already started divorce and all that crap but, I was looking through their text history on her phone and he was very well aware she was married. He sent her a picture of him in his dress blues and from what I could make out, I believe he's a WO3 in the signal battalion. This mf had the nerve to text nudes of himself with the caption "don't let him (meaning me) find out". Who can I call for this? Reading article 134 of UCMJ there has to he something that can he done. He ruined a 7 year marrage and he couldn't care less. I only made it to week 7 in basic before breaking my collar bone and being chaptered out so I don't know much on how this would work. Please advise.

EDIT: She has never served in any branch, I only did 7 weeks and got chaptered out when i was 18, the officer sleeping with her is the only one involved with the military. I understand she ruined the marrage not him but he was aware of the marrage from the start.