Do some of your old contacts suddenly wake up one day to ask how you are doing? Watch them. They need something from you. When they come, they make you feel like you are their friends. You can fall for it just to play along and see how that goes. Once they get you to your comfort level, they pop their requests. You may ignore such requests and damn the farce friendship. You may play along and see if the so-called friends will hang around after getting from you what they want from you. They are unlikely to hang around you. They will disappear only to reappear long after (when they need more from you). You are but a tool for your fake friends to achieve their results. You may spin your wheels daily because you are caring. You will realize it in the 'evening' of your life when you cannot turn back the hand of the clock. Bottom-line: take care of your OWN business as a priority over other people's problems/businesses. Be strong before you waste yourself.