Your aunt says, "i know i'm depressed, and i think and worry about my depression constantly; however, i never actually do anything about it." she is:

Well when you think about doing something, then come up with reasons not to do it and back out or spend more time not completing the task... it would be called procrastinating.

Procrastination my friend, is the bug that gets most people and I’m sure to say that it explains the description given of the aunt with depression. Hope this helps!