I jumped on it anyway bouncing up and down on his head
Did you want to be friends with him even though you were bouncing on his head?
I would like to be friends forever.
It is great to want to have a long friendship with someone but it will last longer if you don't do things like bounce on their heads. They could get seriously hurt and end up in the hospital or dead.
It's not the end of the world. I'm not worried. If he got hurt or died, he did so knowing that I was the one that caused his death.
Do you really think he would have been happy knowing that you killed him? Don't you think you could have just waited for a chance to jump when his head was out of the way?