Purple.

Starfire's favorite color was purple. Even though her powers were green, that color just didn't click with her. Purple reminded her of good things. It reminded her of her sister.

Starfire and Blackfire had always had a complicated relationship. As children, they were extremely close. They were best friends in addition to being sisters. When Starfire would get teased for not developing her powers yet, Blackfire would step up and defend her. Her sister was her hero. Until she changed.

Starfire never did know what happened. One day Blackfire was laughing with her about some stupid joke, and the next day she was ignoring her. Her beloved sister wasn't the same person she had known for all those years. Instead of defending her from the teasing, she now encouraged it. She was a different person. And it broke Starfire's heart.

Blackfire went from being sweet, caring, and bright to cruel, uncaring, and disdainful. Her clothes got tighter and smaller, and her laugh became mocking and harsh. Starfire became her main target, as the sweet young alien never quite comprehended that her sister wanted nothing to do with her anymore.

Blackfire had become a villain. She aimed to hurt, embarrass, and undermine. She became the sister who was hardly a sister. Starfire held out hope for the longest time that the girl she loved was still in there somewhere. Until Blackfire tried to send her to jail in her place. Starfire snapped that day. She was so tired of being walked all over and just letting it happen. She was more than that.

However, Starfire knew deep down in her heart that she would never truly give up hope for her sister. She would always remember the girl who protected her and played with her and made her feel like she belonged. She knew that there had to be a reason her sister changed. She hoped, at least. Maybe one day her sister would come back. Until then, Starfire was just hoping and getting shot down time and time again.

That was why she wore and loved purple. It was a constant reminder of her sister. Good or bad, Starfire still loved Blackfire. She knew she would come back one day. She had her memories. That was the thing about Starfire. She never stopped hoping, and she never stopped loving. You could cross her a hundred times, and she'd still welcome you with open arms.

So, she wore purple.