Punkin...this is absolutely true...My H used to hug our son and give him money when he saw him...he really didn't know how to interact with him because he knew his son knew what he had done...he couldn't talk about things that were going on with son because it interlocked with his D's her wanted nothing to do with him...with me, who he wanted nothing to do with...it was a real mess emotionally for H...which is why I feel H avoided contact for great periods of time because it was like looking at himself in the mirror...he was forced to face the fact that he was missing out...that he had made decisions that deeply hurt his family...
So...yes, reaching out to you in text about visiting the kids...was in a way sticking his toe in the water to see if it was comfortable or not...if he can do that and you don't react negatively or over poweringly to him...it gives him something to ponder....