Quoted for posterity/convenience:

in a world of greater legibility, romantic partners would have the conversation about "I'd trade up if I found somebody 10%/25%/125% better than you" in advance, and make sure they have common knowledge of the numbers

(Marriage makes sense as a promise not to do that period; but if so, you want to make sure that both partners are on the same page about that. Not everyone assumes that marriage means that.)

Her: I am never, ever letting you go unless I find someone 75% better. Me: Works for me.

oh hello there Performative Allistic Twitter