I use to get very anxious. Anxious before a supervised playdate. Anxious all summer waiting for the divorce. Anxious when my phone would ring and it was an unknown number (the other woman had contacted me). Anxious when he would call and I would have to have a conversation with him. It was dreadful. I was with him for 16 years. He was my best friend, and now we are at this place where we can't even communicate. I hated it. I still get a little anxious at an unknown number, but after 2 years it has gotten better. It helps that he has been mia forever. No contact helped me heal.
So, what got me through my stress? Lots and lots of yoga and stand up comedy...you need a release.