I definitely am being unreasonable. I think I know that.
My step son is 17, my brothers are 18 and 19 (both living in our city for university). They met about a year ago at a family event and have gradually become quite close friends. Which is great for helping my step son to feel part of the family, etc etc.
Here's the issue:
My brothers and I have always been close; we have always confided in and covered for each other from our parents/school/etc and I'm the first person they call when they're in trouble, which happens more often than anyone would like.
My step son is my OH's oldest son, he's the age now that my OH was when he was born and my OH is very protective of him. My step son and I have always had more of a friendly relationship than a parental one (due to our relatively small age gap), but obviously I would never hide things from my OH so he could go out partying etc like I have done previously for my brothers.
I know I need to grow up, be responsible and let my brothers have my step son as a friend instead of me (yes, I'm jealous, before anyone says it!) and be a little a lot less involved in their lives. That's why I'm here, I feel I need a bit of a kicking, to be told to suck it up and be a grown up (I'm a mother for christ's sake) but I can't confide in anyone in RL. Nc for this.