I probably don't deserve to comment because I have never been married; I've never loved and lost. But I have been alone my whole adult life and when I feel especially lonely I try and get connected to a church/ bible study/ ministry for companionship and support. When I deal with the problems of others, my troubles seem to fade away. Truth be told, when I get my heart and mind set on Jesus then I feel no loneliness. God be with you, brother!