What are your bottom lines? Only you know what YOUR bottom line is. You discover and learn these through experience.  Has your partner violated one of your bottom lines? Does your partner know that this is one of your limits? You need to share your bottom lines with your partner? A bottom line is a deal breaker. If you have a bottom line and you’re not acting on it when it’s crossed then it’s likely that you’re writing a prescription for your own misery.