People come and go out of our lives, friendships change and evolve, and new people fall into the role of best friend. When this happens there is often a series of thoughts that go through our heads — what do they need to know? What should I tell them about my past?
There is no hard and fast rule. There is not necessarily a reason why you need to tell but there may not be a reason why you shouldn’t. If this person is your new best friend chances are things will come up over time as your comfort level and different situations present themselves.
If you decide that you should tell him, her, or they about something that happened in your past you first need to figure out why. Why do you want to tell your new best friend this thing? Is it part of who you are? How does it align with your personal compass? Does it impact your current life? Is it something that you just feel you need to get off your chest? Whatever the reason, and there are a million different scenarios, make sure you are comfortable with your purpose for sharing. Once you share, you can’t take it back.
After you decide to confide in them, you are in control. You decide when you want to tell, how, and what. The ball is in your court. You don’t have to divulge more than you would like. Be clear with the person about how it aligns with your personal values. Let them know why you are telling them these things. Maybe you were in an abusive relationship and now you have trouble entering new relationships, maybe you were in a bad car accident that makes it hard for you to drive, maybe you lost a family member in a tragic way and now avoid certain situations, whatever it is, why you want to tell, it is all up to you. Don’t feel pressured to share anything you are not comfortable with.