Am I To Forgive Someone Who Is Not Asking?

Biff asked, “As a believer, does God’s Word require me to forgive a relative of mine time after time—essentially let her off the hook—for her unkind behavior and attitude toward me and the many cruel and untrue things she has done behind my back to other family members? She never asks for forgiveness and only tells me I need to understand her feelings. Am I wrong to stay my distance and set some boundaries?” What would you say to Biff? Have you ever had a situation like this? How did you handle it?