Twenty hours for a single romance is a statement of intent. Becka Mack writes at a length that allows a relationship to be interrupted, misread and repaired several times over, which is precisely what readers of the genre turn up for.
Consider Me belongs to the Playing For Keeps sequence, a connected contemporary romance run of the kind where each book takes up a new couple while the surrounding cast stays put. It is a structure built for people who like to move in rather than pass through.