So I've got this friend, and I'll call them M. M and I have known each other for like our entire lives, and I do get along with them pretty well. They seem to really trust me and share some secrets and personal stuff with me, which is understandable especially for a friendship that long. But, I can't seem to trust them as much as they trust me. After all, whenever I tell them about my favorite video games, they're incredibly uninterested unless it's something we both like. So, I think it was pretty understandable that I decided to not trust them with actual personal stuff. If you can't listen to some ramblings about anime and shit then I'm not going to vent or even tell you I sh and am suicidal like no twin. But, we have this mutual friend we met like a year ago, and I'll call her N. I only really trust N (she earned my trust) with these kind of topics, but I feel bad leaving someone in our friend group out of it, especially a lifelong friend. Am I wrong for doing this?