I went through about 5 years of this before I kicked him out. They cycle so badly.
My suggestion is to keep those expectations at zero and keep doing what you have been doing. Remember DB is based on them taking notice of you making positive changes. Keep giving him space. Treat him like the friendly barista, but mirror him. No pressure. Keep working on you and making sure you are doing self care and finding outlets for you. Don't pretzel or walk on eggshells. It feels awful and it doesn't help.
