Not about my personal story but maybe you guys can feel this.
The problem of toxic relationships is not with lovers but with pets, here I visualize it with cats because many friends around me keep cats.
Scratching, biting, feeding, removing feces, being patient when breaking things, bathing them, etc. become daily routines. Even though it's very tiring, we don't ask for anything in return, but just hope that he/she stays healthy and can actively act funny to accompany and cheer up us at all times. The days that go by are not felt until the time comes when he/she leaves us.
Toxic relationships that are obtained are sometimes painful but the thing that hurts more is the loss.