I don’t know about trusting YOU, but it sounds like she has been burned before and has problems with trust in general. It is also an indicator that she is a control freak and does not understand personal boundaries. You’re looking at a red flag, my friend. I would correct that behavior before it escalates. Trust is earned, and not by searching for something she would bitch at you about. If this is the same girlfriend you asked us about with her drinking, I suggest you sit down with the coolest parent among yours/hers and ask them to talk to you about attempting to control one another and how they developed healthy boundaries themselves. It’s a common young romantic relationship mistake, and your parents can help guide that initial urge to control someone you care for.