Can't be alone
Always on the phone, always booked, a new partner within weeks of a break-up.
Rule out first
High extraversion. A recent loss that makes solitude painful for now. A living situation where solitude is rare and unfamiliar.
What could explain it
Extraversion: They enjoy company; solitude bores them but doesn't distress them.
Experiential avoidance: Alone, feelings arrive, so they keep moving. Distraction is the goal, not company; a screen does as well as a person.
Dependent personality: They need others to decide and to look after them; alone, they freeze over ordinary choices.
Abandonment/instability schema: Being alone feels like being left; they stay in relationships that are bad for them.
Borderline personality: Solitude brings chronic emptiness and sometimes impulsive or self-harming acts.
A next move
Ask what happens in the first hour after everyone leaves. Boredom is extraversion; a rush of feeling is avoidance; not knowing how to cope is dependence; emptiness or self-harm needs proper care.
If it’s you
What do I feel in the first ten minutes alone, before I reach for the phone?