1. Really liking someone then ending the relationship after a year because you keep getting f***ed over, cheated on etc. You constantly hate on them and your friends help you hate them because they ruined your life and mentally and emotionally hurt you. They continue to treat you disrespectfully and you grow to hate them and try to forget about that part of your life.
2. Being in a great relationship where you really like the other person for 4months. No fights, enjoying every moment kind of relationship. But then they move 3000 miles away for half a year so they end things because they don't want to do long distance. You continue to be on good terms and can't hate them because nothing bad ever happend and they were nothing but kind to you. Youre never able to lose feelings for them. But you assume they ended things because they didn't like you enough. (Which is probably true)