Classic sociopathic control strategy: Accusing you of cheating
Have they suddenly been accusing YOU of infidelity without any real reason to do so? What could be an innocent banter with an old friend to you, could be cheating to your partner.
But at the time I was so blinded by it all and made to think that it was all my fault for all the issues that I felt guilty and wanted to do anything to make it work Crazy.