The first time Hattie chatted with Sally was on Sally's birthday, on account of Sally aging into the brackets Hattie had set on Tinder. On their first date, Sally tried to decide if Hattie was too tiny and Hattie tried to figure out if Sally was having a good time or not. Luckily they were both willing to take a chance on someone who had a job and seemed sane.
The more Sally and Hattie spent time together, the more they realized how well-suited to each other they were. Sally was the Star Trek to Hattie's Star Wars, the pineapple to her coconut, the dishwasher to her dishes. They both make each others' lives better and are looking forward to many years of happiness together, in which they will eventually watch both Doctor Who and The West Wing in their entirety.