6. She’s Been Hanging Out with a “New Friend”
If your girlfriend suddenly has a new friend that she frequently mentions but who remains nameless or is vague about what types of activities they are doing together, it is possible that she is more than “just friends” with her new friend. One of the ways you can find out more about the nature of their relationship is to encourage her to invite her new friend over. If she refuses or makes up excuses, she might be cheating on you.
