I can't forget my ex - so I saw a spiritual healer?

She said the reason is because we were supposed to be together and that my soul captured him. He turned out to be my third cousin so we couldn't be together. I wanted to see if we could get past being related as we agreed we would when we first found out. Then one day after six months he decided that he couldn't do it, said he had to think about how his kids would be born. It just feels a little ironic I finally meet someone I want to share my life with and who loves me back and this happens. Before I met him in the flesh I dream t about him and he showed up in a tarot card reading. Can someone help me out please I can't get my head around this. If he really truly loved me would he have let me go. Up until this day he still claims to love me and says he always will