[Stahn's actions make it clear--he understands and he feels it too. He isn't doubting it as much anymore. Leon knows better than to think that he'd be able to resolve those issues just from this, but...maybe if he made him doubt it even a little, that would be enough.

Leon loves Stahn, after all.

He loves him and he wants him to be happy. He wants him to believe that Leon loves him and wouldn't ever want anyone else.

He wants him to never doubt that.

He pulls away from the kiss when he can't linger any longer, breathing out a slow, satisfied sigh. He remains close, eyes half-shut, but entirely focused on Stahn and Stahn's face and eyes. He's personally satisfied. That's more than enough for him, and his own uncertainties have long since faded.

This is more important, and he can't help how his lips curve slightly into a pleased, satisfied expression.]

I don't want anyone else.

Do not ever believe otherwise, because that is what I believe, and that shall never change. I am not a fickle person, so if nothing else, have faith in that.

[If nothing else, he's confident and certain.]