Kylo would not be the man Ronan loves without the very worst of him. It wasn't his potential that Ronan fell in love with. He never looked at Kylo as an object to be refined, a person to be reformed, a project to be undertaken. He isn't trying to uncover Ben Solo, heir to the Skywalker legacy, the fallen hero in need of redemption. He loves Kylo Ren, who built an identity out of the ashes of his family's expectations, who found a will of his own despite the influences fighting to pull him in one direction or another.

Ronan will have this one. This war criminal. This monster.

He lays a trail of kisses across Kylo's cheek, which is difficult to do when he keeps breaking into a smile. Leaning his weight into that crush of an embrace, Ronan practically climbs him, until he can't get any closer without altogether sinking into Kylo. Awed, like he's trying to convince himself of this reality, he whispers, "I'm gonna marry you. We're getting married."