How does graff once again use valentine to help ender? Does she feel she helps ender? Does ender feel he's been helped?
After the "system breaks up," Ender leaves battle school with Graff and returns to Earth. Graff uses Valentine to keep Ender going, because she is the one thing he considers worth fighting for. In other words, he takes advantage of the love Ender and Valentine have for each other. I don't believe Valentine believes that she has helped her brother.... and as for Ender.... seeing his sister keeps him on his path, but it's not the path he wants to tread.
