Burnt Bridges

I've seen so many "fall-outs" this year!! Specifically Issa and Molly from HBO's "Insecure," which honestly hurt the most! (I'm too emotionally involved in scripted television, I know) So, what do you do when bridges have been burned with a LONG TIME friend?! After time, are you open to repairing? Or is it "F$@k you forever"?! What do you consider a "toxic friendship"? What does not being able to maintain any type of friendship with anyone say about a person? Yassssss, I know this topic  got y'all thinking!!!