Now I seem to write as if I don't care to do so any more. However that cannot be further from the truth.
I'd say there's your problem, chum. Basically, you still
know you can write well, because you've written well before. We don't live our lives backwards, and writing is one of those skills that gains from experience, and with time, maturing and deepening as it goes.
However, sometimes gaining that experience has a price. An emotional one.
When City of Heroes was taken from us, we all paid that price. It hit us all in as many different ways as there are those of us to hit, of course, but one thing cannot be denied - we all WERE hit.
You said you felt you seemed to be writing as if you didn't care any more, and in a way you're right - with CoH gone, a part of your creative side went into shock. Perfectly understandable of course, because for many of us here, CoH was a creativity sandbox, somewhere our dreams and ideas could literally take shape and our inspiration could grow and blossom. We all invested time and emotion into our world, and when it was taken away, we were hurt.
Often when people are hurt, they subconsciously recoil from what hurt them - not just the obvious pain, but sometimes the reaction goes deeper and we sever that part of ourselves entirely, believing amputation will prevent the hurt from spreading.
It's an understandable reaction to emotional stress, and thankfully one that can be reversed. In fact it usually reverses itself over time.
Confidence will return once you've found your new emotional balance. Part of you can already see that process happening, because when you mentioned about not caring about writing, you said "that cannot be further from the truth".
Your creativity will return, for in truth it never left, it merely went into hiding until it was safe to come out again