I see I'm not alone in my grief. People are comparing what this is like with other situations.
For me it's like a girlfriend or wife that dumps you. They had it planned for awhile, and just suddenly spring it on you. "I'm leaving!" Even though you know you might meet someone else, it still feels like your world is coming to an end.
You feel betrayed, angry and depressed.
I downloaded the trial for Presonus Studio One, and got it running. Loaded a few instruments. I guess it works well enough. But I don't like the UI, and I'm not used to doing even the simplest of operations, like making a clip into a looping groove clip. Yeah, I guess I'll get used to it, but I don't think I'll ever totally get Sonar out of my system (no pun intended).