I miss my old best friend that I don't talk to anymore. I can't bring myself to tell her though. We were bffs from age 14-20 but we slowly drifted apart during college. What should I do

We had some small drama like a year ago where she thought I blocked her on Instagram but I didn't. And that's really it other than that we just grew apart :-( sorry if this seems lame I just need opinions.

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