<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
My ex-girlfriend is going out with my "supposedly" best friend.
<|assistant|>
That is a tricky situation. It can be painful to see someone you care about with someone else, especially someone you considered a close friend. The best thing you can do is to give yourself time to heal, and when you feel ready, approach your ex-girlfriend and your friend respectfully to find out what happened. Make sure to be open to hearing their perspectives and understanding their motives. Focusing on getting to know yourself more fully can help you move forward in life in a healthier and more resilient way.