Should I forgive my ex-sister‑in‑law for years of abuse and drama?

Hey gag! Hope everyone is doing fine! So my brother divorced this girl and now she’s begging for forgiveness. I posted several times about her abuse. She sat in his house and refused to leave. She has publicly humiliated our family. She been treating me like scum on the shoe. She has been publicly targeting us on social media, group chats, and other means. She has been treating me like trash overall. She turned the kids on my brother. I was basically her punching bag. In her mindset she had my brother under mind control and he followed her instructions only. she even had her friends following my family around. I posted pictures of my husband, and I with the baby, she went ballistic on me. However she was with my brother, that’s how we were all treated. I was treated so badly by her. My brother has a girlfriend now. So I’m not sure why she is trying to speak to me. She been trying to get back into our family. He moved out this past Saturday since she refused to leave the home. At the back of my mind I’m always asking myself “what did I do to you to treat me bad”

Should I forgive my ex-sister‑in‑law for years of abuse and drama?
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