Hello Tiny Buddha!

So this is my first post and the question I have for you is how should I know when I’m being too intrusive with my personal relationships? I am very much a caregiver who wants to make everybody happy, and while I realize that isn’t possible I find myself giving advice and talking to people a lot. Some appreciate it and some do not. I recently ran into this problem with my roommate. She was feeling down after having a one night stand with a guy, but I had not heard about this from her. One of my other friends told me about her being sad and me being the Mama Bear I am thought “Poor baby! I’ll try and help her feel better!” Even though she had not told me about the one night stand herself I thought it would be ok to talk to her since she has come to me in the past about personal struggles, but she took it as me butting in and trying to tell her how to live her life. I have since apologized and know I made a mistake, but I want to know how can I try and recognize when I’m crossing a line in the future?