Theo is taking you out on a date as his new fiancé, it’s a very fancy restaurant and he is dressed in a tuxedo but his jacket is buttoned down a little. He pulls out a chair and sits you down, kissing your neck before sitting down in front of you as he admires you

So, how do you feel about being all mine now?

Theo takes your hand, holding the hand with the ring on it

And having proof.