<|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's best to be honest and straightforward with your former best friend. Apologize if you did something to offend her, but explain that you no longer have the same level of trust or friendship. Suggest how you might both meet up for coffee or a casual lunch as friends to catch up without having to discuss your current differences.