I agree with bj, and my guess is that he would decline the invite. He seems confused and anxious when around you, so I doubt he would want to be in the same room with both you and your mom these days. It would be like 2 on 1 )
Give him space and time. He has made moves in the past to show you that he is trying to have contact with you. I'd say in time he'll come to realize how much he misses you... that is, if you give him space and time to actually miss you.
Take care, Ali
"There's a price to pay if you want to make things better, and a price to pay for just leaving things as they are."
My situation