expireship

A relationship agreed upon between two willing parties for a proscribed length of time.

Both parties will have full access to the other party, similar to a relationship for the length of time that was laid forth at commencement. I.E. Fake Dating, without the “fake”
coined by Author Willow Sanders in the story "The Expireship" (c) 2023

I only needed him to be my boyfriend long enough to get through my brother's wedding without anyone questioning me about my love life. So we agreed to an expireship. We'd have all the benefits of a relationship, with an expiration date of two weeks from today.