Help please

-6 year relationship ended at the beginning of May. We were engaged and 3 weeks away from buying a home together. He said the abortion we had 5 years ago has been weighing on him and he couldn't take the feeling anymore. Everyone around us was having kids and we were ttc with no luck. I can't stop thinking "what if". If we had the baby would we have been together forever. Is this all my fault? Am I being punished? Is my entire life ruined now? I am at the point where I dont think I am going to survive this. The pain and guilt is taking over. Yes I see a psychologist once a week. Please help me. He said he feels better now that we are broken up and he doesn't miss me. I asked how after 6 years he just stops caring and not miss me and he said he doesn't know, that's just how he is.