Adult love is also an attachment bond
The central idea of the book comes from a shift in thinking: almost everyone separates romantic love from childhood attachment. Sue Johnson draws on attachment theory, from the psychiatrist John Bowlby, about the bond between baby and caregiver, and shows that adult couples work by the same logic: each person needs someone who responds when we call.
This explains why a small slip, like your partner not answering the phone for hours during a hectic workday, can set off a disproportionate reaction. It is not about the phone: it is the body's alarm system asking whether there is still someone reliable on the other side.
Think of the rideshare driver who only settles down after texting home and getting a quick reply. It is not control, it is the nervous system checking that home base is still standing. The book calls this the need for attachment, which does not go away with age: it only changes shape.
