I Pay Two Mana to Propose

Two friends of mine just got married. This was how the gentleman proposed to his lady (after making her a special deck for Christmas, first)

This looks like the most complicated proposal in the the world, but maybe that's because I don't play Magic The Gathering. However, even with my severely limited knowledge I can tell that The Proposer risked a lot in playing The Ring card. I mean, what if she had sacrificed it? That would mean an eternity of Thom Yorke... Also