A tiny Yandere moment from alfonse right there..

But he was a good boy. He knows not to ruin the good he has now.

Yep, I agree and that shows just how much he loves her unselfishly. Just forgot to include it in the comment..

Well, we could also mention he needs an heir so he will have to learn to share. Hahaha

Hahaha yep a baby or two really won't hurt..