Yo, this is some real good development for Sensei. He really found something to live for. And he broke away from Sacchan's toxic personality. And I'm pretty sure this "double suicide" was originally her idea.
It bugs me that the people see Griffith as a savior, and it'd be hard not to. Except we saw exactly what he did to get to where he is now. He stands on top of a mountain of his former allies, and probably doesn't even remember them.
This was such a cute story. To think this story took place in the span of 1 year. I like to think that they'll eventually get married, they just need more time with each other.
I'm glad those 2 are planning on getting married. I think at this point a couple knows whether they want a commitment or just play around. And clearly they made that decision to settle down with each other.