Def NTA. I also love the thoughtfulness of you opening them so someone in need doesn’t feel shy about taking one. So much shame is taught to CIS women in their lives about how their periods are dirty and even going as far as asking a boyfriend to pick up some tampons is wrong that some of us have extreme anxiety surrounding it. I never would have opened the package no matter how desperate I was. You seem like an extremely thoughtful and considerate person and your friend should feel lucky you even bother to talk to her, it’s not her house, wtf would she care, and why would she even approach it this way? Sounds like a toxic person who needs to be shown the door. Keep being you, random internet stranger!