My soon to be ex wife decided to have sex with someone 5 days after we decided on separating. In my mind. That means she was definitely flirting with or talking to this guys before we had separated. Our marriage had been slowly falling apart for the last six months but after finding out she had sex with someone else. I was done. I grabbed my belonging and left. She always relied on me to pay all the bills and expected me to continue paying rent until the lease ended. I told her I was done and she could contact the attorney for any questions. She still tries to call and text about how she misses me and loves me and she sees no fault in her actions for sleeping with someone else right after we separated. Am I overreacting to this. She admitted doing it and sees nothing wrong with it.