I introduced my high school friend to my “best friend” that I have known since fifth grade last year. We hang out as a group only a couple of times and they got along really well. It was fun hanging out as three instead of my best friend and I alone or me and my high school friend alone since we had more to talk about and just more activities in general. Mind you we are all in college now. But I can’t help feel so anxious that if I want to hangout with my high school friend alone and tell my best friend causally about it she would think that I’m supposed to tell her to come along. It makes me mad because she is my friend first and not hers. They hangout alone only once because they were on vacation in the same country so they decided to hangout together for a change. But now I just feel so stressed that my best friend thinks that my high school her friend is her friend as well, and I know I have no right to tell her what to do but I know that the only common thing they have is me. I don’t like mixing friend groups and I just don’t like when people expect something from me. How do I blur the lines between them like how it always has been? And how do I set boundaries about my friend ship with my high school friend to my best friend? This is making map fucking anxious.