When someone is heart broken they need time to get over it. It is a grieving process (each person grieves in their own way and in their own time span) and it is best for you to be a shoulder to cry on for the time being. In time she will get over feeling this way and hopefully she will fall in love with you. Take her out to have some fun and don't put any pressure on her. If she doesn't want to go out then tell her you are there just to listen if she needs that shoulder to cry on.
