Some friendship problem, what should I do?

I'll keep it short
I had a best friend in my pre university.
I broke friendship with her because she backstabbed me and i trusted her a lot. (4yrs ago)
Recently her dad died because of cancer. I was kinda traumatized. I called her up and talked to her (for 1st time in 4-5 years) she said "we will meet soon-ish"
She still didn't accept my insta request
I want to talk to her but dunno if i should.
Talk
Dont talk
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I am also confused if i should move on and forgive her or not. Basically what she did was she defamed me because of which other people didn't used to like me. And she was my bestfriend
Some friendship problem, what should I do?
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