Jin- You both were very busy and Jin had to be in different places every time. You dont want to have a long distance relationship. That is why you broke up.
Suga- You caught Suga cheating on you. You slapped him in the face and left him.
Jhope- Jhope stopped time with you after a few months of dating. You got so pissed at him and left him.
Rapmon- your parents did not want you to be with rapmon. They even threaten to disown you if you dont leave rapmon. So you decided to leave rapmon.
Jimin- You just found out that you was pregnant. You did not want Jimin to know so you ran away unexpectedly.
V- V thought you was flirting with other men. When you guys went home, V started scolding you and cussing at you.
Kookie- Jungkook could not focus on his relationship with you. So he decided to break up with you so he wont end up hurting you badly.