About a month ago, the guy I'm talking to dated a girl for about two months. Ever since they broke up, she keeps putting different love quotes on her instagram bio and throwing herself at him. Like she put "I miss you" in Spanish on her instagram bio. That was only of the many different quotes she put on there. I never know what to say and it makes me uncomfortable. He always disregards and ignores her, so I'm wondering if I should ignore her, let it play out, and she'll move on.