Could I Have Prevented His Cheating?

Sometimes I have to wonder and ask myself, "could I have prevented his cheating?"  and for a long time, I took the blame, worried about how things might have been and beat myself up over this man, that I loved dearly, but felt that he needed to cheat on me. I felt lost without him, and it took me YEARS to actually get over him and what he did to our family and his stepping all over my heart and soul. How can someone really LOVE you and do something to hurt you all at the same time? I have asked myself this over and over through the years....and honestly, that is something that he will never be able to answer me. Bottom line is...is that he thought that he could get by with it without my knowing...hence the saying "what she doesn't know won't hurt her". I honestly don't think that I could have prevented his cheating because I thought that things were good....and on the surface, they were. He had home cooked meals, clean clothes and we were getting along fine as well, but obviously, to him, something was missing or he wouldn't have felt the need to go to HER. Believe me, I bent over backwards to try and fix him, and his cheating ways, and NOTHING helped....so, no, I do not think that I could have prevented his infidelities. Hopefully he's happy now, with HER....I know that I am VERY happy without the worry of wondering any longer.