TW child endangerment. Hes not trying to be a part of our child's life, it seems

AITAH bit of back stroy that relevant. I left my childs dad when they were 5.5 months after finding out he had an interest in children and i found proof of this. We were placed in refuge and I fought almost 2 years to keep them safe. He had supervised contact at a contact centre and they hated it. Never wanted to leave me always got suuuper upset, would even lie at 1.5 years old saying they needed the toilet in order to come back to me. At one point after them saying they needed toilet and not going back in the room with him he started screaming and shouting throwing things, I cpuld hear this thru a long corridor and 3 closed doors. There were other children in the building. He didnt see a problem with this and lied stating it never happened. Eventually, with the court process he backed down and things fell in our favour. He was not prosecuted for his behaviour as police said my evidence was "historic". It was determined by the court that he would get 10mins once a week video call and up to 4hrs every 2 weeks supervised contact. With me being responsible for finding a contact centre. Since this was set out I found a contact centre and sent him the details.to arrange it.he never did. I contacted the centre after 3 months of not hearing anything and him saying he hadnt heard back. They have no record of him. In 3 months he had 2 video calls and said it was "too painful as the child didnt want to be involved in them". This was after me contacting him every week for about a month asking when he wanted his call. After another month I suggested a day and time and he took it. My question is, would I be the a hole if I decided not to keep chasing him up about having contact with the child, given to me, he doesn't seem interested? When the calls do happen the child will run away from the phone and hide, they laugh because im trying to make it a positive experience but im honestly over trying for him to not be bothered. I also send weekly updates which he just hearts. He has only once asked how they are in over 2 years. Would I be the a hole for.just giving up and not following the child.about to try get them to have a conversation? Thanks all