a thin line between love and hate

A very narrow division between feelings of love and feelings of hate. A: "How could I possibly have a crush on Brian? He's such a jerk! I can't stand him." B: "Yeah, but there's a thin line between love and hate." She was enemies with her now-boyfriend for years. Guess there really is a thin line between love and hate! A: "I honestly don't know if I loved that movie or hated it. All I know is that I'm having a strong reaction." B: "Well, there is a thin line between love and hate."