What do you think of this?

A kiss on the cheek could mean the same as I love you too. His parents are having a difficult time of letting go of there son because of his condition. They are babying him. He needs to break that tie and you need to accept the responsibility for it. That should be a tough thing to accomplish. A mother and fathers love for there son who they think is in trouble with his heart, is a problem you may have to live with until he finally speaks up for himself.