The Struggle to Mend a Friendship

I have trouble getting over friendships... over one friendship in particular. We were thick as thieves all throughout high school where we met, and we were practically inseparable. She then made a comment that I was trying to be her and in a way stealing her light,. It rubbed me so wrong that I completely took myself away from the friendship. The friendship now isn't even cordial. We both are moving on in life, and there's no communication. Even seeing her on social media can spiral me into confusion and grief. However, I feel like I'm missing something in my life because I truly do enjoy having a best girlfriend to share the things in my life that my partner doesn't understand