Who said "I understand loss in ways others never will."?

This quote is attributed to Scarlet Witch (Civil War).

I understand loss in ways others never will. - Scarlet Witch (Civil War)

"I understand loss in ways others never will."

Scarlet Witch (Civil War)

"I can't control it when I'm angry. I can't control it."

"Sometimes the best way to help people is to let them make their own mistakes."

"I just wanted to help. That's all I ever wanted."

"They're going to come after me, and I'm not going to run."