 Christ's cross being the marital bed and his sacrifice giving his life for his church, the spouse. And that's deeper theology that I can wrap my limited intelligence around. But this agape love is unconditional. And it's so hard because this is where we're asked to love as God loves, which means I love you in spite of how you treat me, right? If you're having a bad day, you're cranky or you ignore me or whatever, I still love you just as much.