Despite how much we deny it - we know when things are going down hill. To be honest, at his weight. I would say you should take the time now. Be with him enjoy your time together as much as possible. I have watched two people die slowly (one of cancer) and it is heart breaking. You don't want regrets hon. I would also call his parents and maybe suggest they come asap. I am not sure of his natural size, but 107 is TINY and my friend was 5 feet,and 70 lbs when she died. Do a comparison. If things are bad, that's a sign that the end is near. Hugs and blessings and I am so sorry you have to go through this.