There are cellphone apps that will spoof any incoming caller ID that you want. You could call their home, and make it show up as if, say, Police Benevolent Fund or something was calling.
Just a thought. I do agree that you should NOT talk to her until your head is in a better place than it sounds like it is today. However, the "chicken-and-the-egg" that you're going to be facing here is that I don't think you're going to GET to a significantly better place until you've DONE something about this. Men are typical "fixers" and don't do well sitting by passively, allowing our minds to run away from us.
You may want to consider asking your doctor about some anti-anxiety meds. They really helped me a LOT, and many of them do take a couple of weeks to kick in.
