Tris had a love for her family. Even if she was not staying with them like one had thought at first. Threw out the movie she makes references to her family. She sees her family often in the family. At the end of the movie she looses both of her parents.
Tris is trying to find what defines her. As she is not like the others. So she is trying to find herself. She doesn't know who she is. What shes known her whole life is gone. So she would have to find herself. Four is helping her find bits