I’m going to join gym tomorrow and I want to go alone but my dad has told my sister to join with me. And I really don’t want to go with her. I really find her very irritating. She’s the kind of person who makes me insecure about my body and talks way too much. And I’m the kind of person who remains quite and don’t talk much. In short, we are almost opposites. And she doesn’t really need to work out, her figure’s good. I don’t know how to avoid her.