Just proceed on going by yourself, if the programme counsellor asks why he refuses, you explain to them that he refuses to go. if you have the solid proof that he mentioned he did not want to attend, and that you have been solo parenting your child would be better. You can show it to your programme counsellor or divorce mediator the next time u have an appointment with them. Trust me with his selfish minded plans, it's better off that you continue solo parenting since you're the only one handling everything. In your situation right now, it's best for u to be upfront and transparent with anyone that's handling your divorce case. Be strong and trust yourself mommy.