The use case is clear, it's not one of my use cases at the moment, but it's clear.
Less clear is how the app addresses the hard problems of long distance relationships, which for me were those times when communications were prickly. Cuddly kinda' took care of itself. Scheduling communications was more a matter of routine than checking calendars. Still seems to be the case that we just set aside a certain time of day.
Finally, I think the idea of generating revenue from services product is probably better than pursuing subscription. It's easier to have a high dollar transaction that would take 100 years of subscription revenue to generate. It also keeps the focus on delivering what each individual needs.
Good luck.