Jealous?

I went to change Torin's diaper on Sunday and we came back from his room to find Cooper had crawled into Torin's blankets to take a nap. I don't know if he was hoping it was his turn to be rocked to sleep or what, but he has been giving us more signs recently that he doesn't like the fact that Torin gets most of our attention now. Torin however has really started taking an interest in Cooper. He loves to grab at his fur and try to get his ears. Cooper is very good so far and just gets up and walks away when he's had enough of Torin.