I have to see my ex twice a week for class and every time I'm in the class with him i'm extremely uncomfortable and can't focus because he's right in front of me. This is a movement small class so we're always standing and he's always in the front so I always have to be behind him and i'm always trying to not have him in my eyesight and i'm always moving and just feeling extremely uncomfortable. I don't know what to do. I know for us people with BPD, we take breakups a lot harder. I just want to know what coping mechanisms I can use in class to stop feeling so horrible? I have a stress ball and I practice my breathing. But my emotions are too strong and I feel myself making myself smaller by all my energy being focused in avoiding him, not looking at him even when he's in my direction. I'm over him he was horrible but for some reason I just feel so uncomfortable in this class, i'm not excited about it anymore and I can't even talk to friends cause i'm depressed from being in the same room as him. And i'm embarrassed because we were only together for a month. I feel horrible because I think he can see he still has an effect on me and I think it's really stroking his ego. I feel myself putting more effort in the way I look to show him how he made a mistake and I don't need him. But the truth is I feel so defeated, his presence is controlling the way I feel and ruining what was supposed to be my favorite, stress free, relaxing class for me. This class will be over in mid december. I want to enjoy this class again, and not be tearing up and depressed  after it's over. I'm literally fine every other day of the week. I hate him. I'm doing well in classes. But this class is no longer fun for me. I don't wanna give him that power. I saw him smile one time when I moved away from him. What are some coping mechanisms to help?