Maybe for the AC, having his partner Y in his life meant having someone who believed and supported him. Maybe that gave him the strenght to say and do things he'ld always thought and wanted to say, but never had the strength to act on before.
Still talking generally and not on specific cases, but can't you see how the arrival of a long term partner can often only be the catalyst and not the cause?
Re-naming SS Great Britain tourist attraction
Evidence on Andy Burnham's National Care Service proposals




and you start to realise things are far from normal.