In 2017 a friend of mine left me for a blatant reason. I was very upset over her decision. I went into an emotional rehab. In 2018 that friend tried to contact me again and informed me that she wants to talk to me and settle things.

According to islam, what should I do?
What does islam commands us for reconciliation?

Islam encourages us to forgive people’s mistakes. It’s good quality for believer. Forgive her.