My little Abby was spayed earlier this month and never acted like anything happened at all. I tried my best to keep her quiet and worried about her being so playful, but she's done just fine! I can hardly even see where the incision was now and it's only been, 17 days!
I did lay in bed with her the first night and a lot the second day to keep her quiet. Will he lay down with you on the bed or couch?
Good Luck