i always liked to imagine they're a very sweet couple who both came from the same background of being freebies and wanted to give back to the one thing that brought them together: finding a forever home ♥
Rufino has the energy and drive to make things happen, and Lyle has the charm and level-head to keep the work from overwhelming them in the long run.
They probably have a shared hobby of something really niche, like, tea-tasting or baking macarons or something, and it's just one of those things that reminds them how much they love each other~~~~~~~