Revenge cheated with one time fling to teach him a lesson

My husband of 20 years has been repeatedly caught in various situations with other women since we met . He found I had seen evidence of this on his computer in 2012 and he told me our marriage was over . I wanted to make him hurt as I did and had a couple one night stands and told him . Fast forward to last year when I found out he was having sex for years with the same women I caught him texting inappropriately years ago . He won’t talk about any of it but when I try to tell him I need to know how he justified this behavior instead of building together like he said after I told him what I had done , he instead flips it back to me and says “well you did it so we are even now .” What I did to get back at him was wrong and made me feel like a terrible person. He was downright verbally abusive and hateful when he was with other women . He kept going back to them even when he knew I had an idea he was doing it . Every single time now I try to bring up my intrusive thoughts about the lies and how I feel he does this . I moved out of the home in November 2022 with our children and he refuses still to talk about it always saying it’s no different than what u did to me . He thinks counseling will fix this but I don’t see how .