Well that does answer some Q's doesn't it. I could see how that would effect things. I hope you are not projecting your hurt and pain on your T. She id something similar to your ex. That is terrible, you don't know the circumstances, in my opinion there is no right reason to have an affair. If this will affect your relationship w/ your T because that is all you can think about in session then it may not be the best option for you. on the other hand seeing your pain could help your T recover and have remorse for what she has done. It is not your job to be your T's therapist but it could prove to strengthen your relationship and make a positive experience out of this.