Your best friends are supposed to be the people who knows the real you, who would listen to you when you mess up and wouldn't let pride get in the way of being friends with you again.

I guess all the time you've spent and the memories you've shared means nothing against a petty misunderstanding. Some people would always put their feelings first before anyone else. No matter how much you have done for that person, they can only appreciate it for a split second until they forgot about it.

Best friends would force themselves to listen to you when you have an argument because they hope to be friends with you again, not shut you down as if this was the chance they've been waiting for to cut their relationship with you. 

Everyone has flaws but best friends know how to talk about them to you before things go out of hand. So don't you dare reason with me, that you didn't like something about me because if you've just been bottling it all the whole time like a plastic does, then maybe you really are one.