Our situations have taken an eerily similar turn. I feel like I read your situation, and found myself in the same position days later. It was weird, but helpful.
I run into the same issues as you. I take one of course of action that is well thought out. I feel good for a few days and then begin to second guess every aspect of what I had done, similar to you with the I miss you text. The the urge comes to contact. It will be non-existent for weeks, but then it comes back strong, very hard to resist. I think we are doing pretty well. Just need to stay strong.