Q1, first thing noticed: he was the only person at that party who was talking to the host’s dog
Q2, small thing: he warms the teapot. Every time. Even when we’re in a hurry, even when I say don’t bother
Q3, most grateful: when I lost the flat and he didn’t say I told you so, he just came round with a van
Q8, actually promising: not to go quiet when things get bad, which is my thing and he knows it
The repeat is obvious once it is written down: he does the unglamorous thing properly, without being asked and without mentioning it. That is what the vow is about, so the version below keeps three answers and throws away everything that did not point at it.
The finished vow
From the answers above · 50 seconds
The first time I saw you, you were at a party talking to somebody else’s dog. I have thought about that a lot since, because it turns out to have told me everything.
You warm the teapot. Every single time, even when we are late, even when I tell you not to bother. When I lost the flat you did not say you had warned me. You turned up with a van.
That is who you are, and it is not the kind of thing anyone puts in a speech, so I am putting it in a vow.
I promise you the same in return. I promise not to go quiet when things get hard — you know that is mine, and I am naming it in front of everyone so I cannot pretend later that I did not.
I will do the unglamorous things properly. I learned it from you.
Note what did not survive: nothing about how they met, no reference to how long they have been together, no “you are my best friend”. The teapot does the work all of that was trying to do, and only one person in the world could have written it.