We had a child together, I thought he was the one for me. Then, he left us when our son was 7 months old (he wanted to leave when he was 4 months old). We had agreed that we would tell eachother if were seeing someone else. Turns out I find out he is living with another women and has been lieing to me for 8 months (not sure how much longer), he was lieing about where he was taking our 1 year old son, he told me it was a friends house. He lied so much, I thought he might be with someone else but he always denied it. Grrrrrr! There were so many clues. We had been separated but we were still sleeping together, and I know for a fact he was sleeping with us both at the same time. I want to forgive and forget. How do you do it?