mdoodles, I had to put up with contact from OW, too. She called countless of times (sometimes constantly redialing over and over), and emailed me, too, usually when she was drunk. Most of the time I didn't answer the phone. I knew she'd be angry and half of what came out of her mouth was probably lies. I've never answered any of her emails. I sure was tempted a few times but I refused to play those high school games.
She's definitely angry and is doing all the things that DBs tells us not to do! Just let her keep doing what she's doing. Let her take the low road and you take the high road.
You can always change your number to an unlisted one. I would consider the restraining order if it gets much worse. And keep track of all those calls and if she leaves you any messages, save them!
I can relate to "it's a mess" ... so ((( HUGS ))) from me.