Says he won't but he does (Virgo)

If you would like to know the full story of my ex there is a previous post. We have been doing alright as friends, but his opening up is kind of weird. We got into a couple small arguments where he stated "I have a rough time opening up, and I just don't think we should go that deep" without argument I said nothing but okay if thats what will make you feel better. BUT ever since then he has opened up about ALOT of deep stuff. I am in college to become a therapist so I am really good at just listening and I try to be nonjudgmental as possible.

The nature of our break up was HORRIBLE, so its quite amazing that we remained friends. So my question virgos is, when you open up to a person what do you expect in return? like advice? or just a listening ear? and how can i continue to be there for him.