I have never, in all my life, ever approached someone to ask them to be my friend. Point in fact, I've been told I have the tendency to be standoffish and it often comes out as unfeeling and cold. Yet, despite that glaring fact, all the friends I have today are people who, at one point in my life, took the initiative to come to me and ask me to be their friend. Literally.
I have no idea what it was that made them want to approach me in the first place but I'm really glad they did. They're the people that made me realize what great friendship was like. The type that, when they do something bad and you call them out on it, they thank you for it instead of getting all defensive and hate you for life. What I appreciate more, is that they do that to me too. I consider myself to be a straightforward person so I appreciate it when somebody tells me if they have beef with me. Of course, I do the same but I at least have the sense to not do it to someone who I'm not close to.
As for those toxic people I once considered as friends? I have enough shit to deal with in my life and I'm not stupid enough to keep 'friends' who do nothing but make my life miserable.