@S I've read your review of the host, the host's review of you, and both your responses.
You've left quite a few salient details out here, such as the late check in and late check out you requested (and got), the rude text you sent your host first thing in the morning, and the full refund you've already received.
Your host has over 250 5* reviews, and a proven track record. Not a single one of those other guests seem to have noticed any psychopathic tendencies at all in her. Funny, that....