[If it's so natural, then why has she always felt uncomfortable with the thought of two people forming close, romantic bonds? People relying on each other and doing injudicious things for the sake of those that they love. The camaraderie of war is the only affiliation that she desires to have with others who are not her kin.]
Perhaps it is. However, what is natural for some people may not necessarily be true for others. There will always be individuals who prefer solitude. [As far as she is concerned, she is one of them.]