monagamous
A couple that stays together that shouldn't.
Her: I nag, because I love you.
Him: I nag, because I want you to break up with me.
Her: I'm sick of this monagamous relationship.
Him: I nag, because I want you to break up with me.
Her: I'm sick of this monagamous relationship.
Monagamous
A relationship of one person exclusively nagging one other.
Liv is in a Monagamous relationship with Ash.