loneliness comes from within, even in the presence of others you can still feel loneliness and it's usually you yourself who let those feelings undermine you. the solution is acceptance, cliché as it sounds but it's not as simple as you think. accept that such a situation can happen as part of many chapters in life then you have to remove your fears that pull you down and make you stay where you are. you need to dust yourself and start moving forward whatever may be the problem. remember! it’s not good to seek happiness outside yourself, they will always end up disappointing you again probably. your life must be worth something, right? find out what that is! just do whatever you can do to make yourself happy. believe me, your life will definitely change for the better ;-)