For years of my experience of communicating with people one thing I understood for sure. True friendship as in ideal books or movies doesn't exist. It can exist while you have common interests and while you have common opinions on what's happening around. But when it's over friendship gets over too. We were born to live and die lonely desperately trying to find true friendship or love. But true nature of every human it's consuming. When he or she can't consume your sources anymore you become not interesting for this person. People of nowadays are just about consuming, not about giving and giving in return.