I know someone who has the tendency to repeat the same conversations over and over again. And a lot of times, they are perverted ones or it is about her being really annoyed at her family and wanting to move back to college. They also tend to turn very one-sided. Not sure how to get her to stop doing that, there is more to live than just talking about moving back to college or having perverted conversations all the time. And at times if I try to change the subject, she will go back to talking about what she was talking about. Anyway to counteract this?