Hi Had Been Dating A Guy For The Past 3

Hi had been dating a guy for the past 3 months - very slow. He is having trouble moving on from his past, not the person but his dog, her kids and the house. He says he wants to move forward and break ties but he keeps on going to walk the dog and see the kids. He decided to see a therapist as he was having anxiety ad depression - he decided he needed to do this on his own so I said ok. He calls me & tells me he is not making progress as much as he would like. His therapist said he needed to get a new dog and he flipped. How can I help him