I would say, if anything, to make it lean towards this. No relationship talk or the like.
Now, for something you may not want to hear...my ex did the same thing. Texts turned into calls. We went out. A lot. Did all the things - but there never was any romantic/sexy time/etc. What I thought was a light at the end of the tunnel turned out to be an on-coming train. She was softening me up to be friends/buddies, nothing else.
I'd say do it but with no expectations. Maybe he will talk, maybe he won't. You, however, DO NOT INITIATE RELATIONSHIP talks. Period.
You are doing well, my friend. Keep it up!
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.