My (38m) ex (36F) and I are in the military, (she just joined after I asked for a divorce after I caught her cheating). Last week, during conversation over the phone she told me that she went to and engaged in sexual activities at an adult theater. This behavior is not new as of late, As I have proof of her engaging in several risky activities when she was with me that are borderline neglect. Normally I would say you do you. However, I'm afraid she's going to try to gain custody of my daughter who currently resides with me, and doesn't want to live with her. Is there anything I can do? I know going to these establishments is off limits for military personnel, but the only proof I have is her telling me over the phone. Should I just let this go during the final meeting? Am I just being petty? Should I bring it up to her chain?