Cheating Spouse

Yep. It’s confirmed. I have video proof of my husband sleeping with another woman. This affair happened in 2018 and I just found out this past Sunday (February 2nd). The woman was a coworker of his, I don’t know if she is lower rank or the same and I don’t know if she’s still located where we’re stationed. I talked to him about it and he said she did pcs shortly after the affair. But still none the less fraternization and adultery. I don’t know what to do. I’m so upset and want to go to JAG immediately and disclose this information. Has this happened to anyone else?