Chreon headcanon that Chris proposed to Leon before his mission to look into the Raccoon City Syndrome cases.
Leon, knowing that he's sick and could possibly die, couldn't give him an answer - not wanting to say yes and leave Chris a widower after all the people he's already lost, but Chris insisted he keep the ring with him and give him his answer when he was ready.
After being cured by Elpis at the end of Requiem and knowing he now has the possibility of the future he wants with Chris, he puts on the ring before going to meet up with him as an acceptance of Chris's proposal.
The first thing Chris sees when Leon gets off that helicopter is Leon wearing his ring.



















