You don't have to go to every fight you're invited to. Ask yourself, how important is it. . . really? If she has this kind of problem being really insensitive and all, leave it at "her" problem. Mention if you want about it in a non-attacking way, and then the ball's in her court. Try not to expect too much, you have no control over the outcome remember. Then. . .sit somewhere else, if that's an option. I mean. . .there were other places to sit and then if it were me I'd wait til she moved and get my spot back. But. . .then I can be mean and vindictive still. Just better. . . not well by any means