I love my sisters and would do anything for them, but I can't say it's not mainly because I know they would do the same for me. Had they not, I don't think I would have felt such a strong connection to them, and a strong need to help and protect them however I could. That does not only apply to siblings, but to any human relationship we have with others. We all want our loved ones to be happy, but if they don't make you feel like they also want you to be happy, then that can seriously complicat…