I find his desperation funny because he's acting like a toddler and trying to remind you that he is still out there. Now, if he were acting a bit more mature in the way he's handling things, then yes, I would say it is a good sign, but this constant texting and calling is keeping you stuck and not allowing you to focus on what you need to be focusing on.
Until he lets go of the apron strings and starts focusing on himself and his issues, he's going to be circling the moon. He's too busy focusing on what you and your daughters are doing to even think about his own issues. Like I've said before, he's a toddler and hasn't learned how to let go completely of mommy's apron strings.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.