And Brennisen will get used to him and begin to see that.  But there is one more reason she isn't too sure about him: how she feels about Kirien, and how she is afraid that rather than gain another high elf friend who accepts her, she might lose the one she has to him.  Yet at the same time, she is awed by how pretty he is too.  She doesn't really have the experience to know that it's physical attraction yet, for either of them.  She just thinks that high elves are beautiful, if not always friendly to her, and she's fascinated by them.