1. Realizing that you’ve lost them and can never have them back
2. Reliving the old memories and the fun times you had
3. Pretending that you’re happy when you’re miserable and sad
4. Being obsessed with the wrong person who will never love you back
5. Regretting how you acted, or the careless things you said
6. Recognizing it’s your fault that things have turned out bad
7. Being abandoned or rejected by your friends or family.