I think the emotional immaturity could be a thing. I really don't think she is looking for the next thing or looking for that thrill and excitement. Now if it found her, that would be different.
I've also noticed that her drinking has taken an uptick with about a half of bottle of wine every night - not sure how that factors in.
She also quit her job because she hated it a couple of months ago and I supported her, her boss was a jerk. And now she is really trying to figure out what she wants to do next. She wants to make a bit of a career change, so she is putting time into that. Just some additional details.
I did order No More Mr. Nice Guy after listening to a book review of it, parts of it sounded familiar and I thought, based on the reviews, it couldn't hurt.
