Bismuth

Bismuth is one of the original members of the Crystal Gems. Before the end of the Rebellion, she and Rose had a

conflict of interests, leading to them falling out. This ultimately led to Bismuth being poofed, bubbled, and left inside of Lion's Dimension. Rose then lied to the other Gems, telling them that she went missing in battle. 5,300 years later, Rose's son, Steven, accidentally freed her. After her proposal had been rejected once again, she and Steven fought and she was poofed and bubbled again by him. This time, unlike Rose, Steven revealed to the others what happened to her. Bismuth remained kept in her bubble for some time afterwards out of fear she might lash out again until Steven finally freed her again in "Made of Honor" to rejoin the team permanently.