Since Good Omens first premiered on Prime Video in 2019, there's been a lot of speculation about the relationship between the series' angelic and demonic leads. It started out as subtext with the demon Crowley even denying there was any sort of friendship between himself and the angel Aziraphale. Yet, as Season 1 progressed, it became clear that Michael Sheen's divine bookshop owner had long desired more from David Tennant's infernal never-do-well.
Source:https://www.cbr.com/good-omens-season2-crowley-aziraphale-kiss/