Nell

The audience will see the surprise arrival of Mulligan’s Nell coming like a warship on the horizon.

Nell knows Herb well enough to be thoroughly unimpressed.

The script promptly sends her fictional spouse off on a birding expedition so that Herb and Nell can get slowly and persuasively reacquainted.

Herb sold out and got famous; Nell quit the business to sell artisanal jam.

Sophina, Nell and Hat have all spent time on mental health wards.