You're competent everywhere else. That's the part that never made sense.
You handle difficult people at work. Your friends come to you for advice, and it is good advice. You can spot when something is wrong in someone else's relationship from about three sentences into the story. Then you went home...
Somewhere in that relationship, you knew not to answer your phone in front of them if it was a particular person calling. You knew which friends could be mentioned casually and which ones needed a run-up. You knew that certain purchases required framing, that some days were fine for raising things a...
She could describe the arguments in extraordinary detail.
Not just the words - the order they came in, the tone shifts, the moment the air in the room changed. She could tell you exactly which sentence escalated things, which question shut everything down, which attempt at calm explanation made it ...