we have decided not to be together anymore he gave me divorce twice one verbally and once via legal …

we have decided not to be together anymore he gave me divorce twice one verbally and once via legal notice he sent me a court’s reconciliation letter which I don’t want we have never met after he sent the letter moreover the letter was one of his threats to me that I should take the divorce myself. so in this situation is seeing someone else is an issue while we have a son and a case going on?