Problem with being in denial or in love w.e u call it?

It's really hard to get over people sometimes, but sometimes you really have to force yourself to not care about someone. When you start thinking about her, consciously force yourself to think about something else. Sports or school or another girl - anything! When she's in the room, look at and talk to other people. After a while, it will become easier, and once you are free of her you will be open to meet someone new who deserves your love!