James Gordon
You were having enough of Jim spending time with Lee. It's like he wants to be with her. One day, you walked into the morgue to find him kissing the M.E., without even looking in your direction. You felt tears in your eyes and silently walked out of the GCPD, but not before leaving a note on Jim's desk saying, "Hope you're happy with Lee. I'm sorry I wasn't enough for you. We're over Jim. Goodbye, Y/N Cobblepot."

Oswald Cobblepot
You were suspicious about Oswald appointing Ed his chief of staff. But you never knew he would go this far. You were going to ask Oswald about your dinner date when you walked in on him and Ed kissing. You were heartbroken and crushed. You swiftly left, without either Oswald nor Ed hearing you leave. You hailed a cab and got out of Gotham, where you ran to your dad's house, and cried into him as you let him know how heartbroken you were and how betrayed you felt.

Jerome Valeska
You could not stand it when Jerome kept doing dangerous things, so you just walked out without an explanation. You went back to Wayne Manor, where you felt stupid for falling in love with a murderer.

Ed Nygma
He was infatuated with Kristin Kringle. You couldn't stand it. You just dropped everything and left Ed.

Bruce Wayne
Plain and simple. He was always comparing you to Selina. You slapped him across the face and stayed with Jim and Lee for a while. You couldn't believe the nerve of Bruce!

Alfred Pennyworth
You were already emotional because Jerome was dead. Alfred yelled at you and made you feel even worse about yourself. "IT'S NOT MY FAULT THAT JEROME BECAME A KILLER! I'M NOT JEROME AND I WILL NEVER BE LIKE HIM SO STOP IT WITH THE FINGER-POINTING! I ALREADY FAILED HIM AS A SISTER, AND I'M SORRY I FAILED YOU! I AM SICK AND TIRED OF THIS! I'M LEAVING GOTHAM FOR GOOD!" you shouted. "GOOD! GO AHEAD! I'LL BE BETTER OFF WITHOUT YOU!" Alfred screeched back. You had reached your limit. You walked briskly past him, packing your things, and saw him as you opened the door. "Goodbye Alfred. I'm sorry that I'll never be what you expect out of a woman," you spat with teary eyes as you slammed the door behind you, not daring to look back as you got in a cab and drove away from Gotham City, the place you once called home and thought you had found love.

Victor Zsasz
You two never break up because there's always honesty and no secrets in your relationship.

Jonathan Crane
No matter what Jonathan would say or do, you wouldn't leave him for anything. So you two never broke up despite his attempts.