The loop you already know
If you can predict the fight by Tuesday, it is not a mystery. It is a pattern. Name the loop before you try to fix the person in it, including you.
Resources
Short notes I actually send people. Not a library. A few places to start while we decide if we should talk.
Boundaries that survive the week
A boundary you cannot keep is a wish. We write one sentence you can say out loud, then we practice the silence after it.
When you do not recognize yourself
New job, new grief, new baby, empty house. The work is not becoming someone else. It is hearing who is here now.