Did you perhaps mean either
"My end goal is for him to feel like he always got my back."
or
"My end goal is for me to feel like I always got his back."
(I suspect the former).
But of course, it is best to have it both ways. I already feel like I can depend on him in many ways. He is not passive, eager to jump in and help when needed, and I like it. So if I don't put too much on him, I can be sure he'll deliver.