They should really put a warning before spending a year of your time with someone that will never make you theirs. A warning that ending it will be easy, but staying gone will be hard. That your nights will feel different when you aren't wrapped in their sheets. A warning that you'll still miss them even though they were never yours to begin with.
My friend said I should write a poem for the FWB I was with for a year because I just recently ended it.