Thanks for all the comments. I have gotten some good information.

I won't ask him about the emptiness over the phone since he said he was fine over the text. If he talks about it I won't give in because I know it's not my fault for his emptiness. I am more for helping people help themselves because I know I am not the cause of others feelings. I think he is aware of that too.

"I'm responsible for my own feels, so others are responsible for theirs."

Plus there is value to this relationship. I myself have learned more on not being overly guarded and I've learned other things that I wasn't very aware of in myself being with him. He compliments me on aspects that he likes about me; not just looks. I was more concerned about him AND the relationship and wasn't sure what to say back at the time being too.