I never got the feeling that they had romantic feelings for each other. So if they would have lived, I don't think they would have started dating...
Title: Gem of My Beaches
Era: Saga–OT, at the very end of Rogue One
Characters: The Force, Jyn Erso/Cassian Andor
Title: The Wedding
Characters: Jyn Erso, Bodhi Rook, Cassian Andor, OCs
Timeline: Saga AU, post-R1 & ANH
Summary: Cassian and Jyn think of each other after the events of Scarif.
Author Note: AU story set a few weeks after the events...
Characters: Jyn Erso, Cassian Andor, mentions of other Rogue One characters (Orson Krennic, Chirrut Imwe)
If you haven’t seen it yet, this contains spoilers for Rogue One! You have been warned!
Title: From Out of the Darkness