<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
I have a former best friend whom I used to like a lot, but she doesn't know why I don't like her any more.
<|assistant|>
It can be difficult to tell someone why you don't want to be friends anymore, particularly if you used to like them a lot. Maybe you feel like you don't have anything in common any more or you don't respect their choices. No matter what the reason is, be sure to come up with a thoughtful response that explains why you aren't interested in being friends any more. It may help if you approach the subject from an honest and sympathetic point of view. It is possible that the two of you may be able to rebuild the friendship with better communication.