Never underestimate an old man with a Tractor sunset shirt

Well, it's hard to answer without more context, but that can happen because you're accustomed to being treated badly, for instance if you have a history of abuse in your background. And sometimes a relationship that seems okay gradually becomes abusive over time, so that like the frog in the pot of boiling water, we gradually find ourselves in a very bad situation without quite knowing when it got so bad. Our hearts can continue to love the abuser despite our minds knowing that we are being treated awfully.