Catherine Cookson's The Glass Virgin

At the age of ten, Annabella goes beyond the forbidden black door and sees her father cavorting with his mistress. Annabella faints and wakes only to be told that she just had a bad dream.

Raised by a dissolute father and distant mother, Annabella finds herself cast out at age 17, with a loyal childhood friend as her sole protector.

Annabella and Manuel leave the Fairbairn's as he realizes he loves her. Shortly after, Manuel finds work in a glass factory, and they marry three weeks later.