Sometimes in life we come across people with whom we feel connected may be because they understand us or provide us with a sense of security which we are unable to get from our own kins. It is not necessary that we have a blood relation with that person. It seems in your case that probably this friend of yours did the same for you and more so at a time when you were away from your family. However, you need to understand that your friend might not be spending the same amount of time with you but that doesn't mean that he/she does not feel for you. Because you are undergoing a lot of stress in your life it is natural for you to feel the way you do. Try and spend some time with your friends. Talk to them and don't hesitate in taking their help when you need.