It is a mystery

No, I appreciate it! This is the first time I've lived with someone who it didn't work out with and I think I have a tendency to drift away from people who aren't super compatible with me in general and that can sift out people who might not be living compatible. I wouldn't be living with F if her sister (B) who I'm much better friends with hadn't vouched for her since they lived together for a while as adults and for me to F. I think the circumstances were different though and so F's messes have crept out. I suspect future living situations won't be like that but I'll keep an eye out for the guide if it comes up.