I feel the same way, when my wife goes out with the girls I have a fear that grows the longer shes gone, I feel alone and I'm scared that she'll not be back, or that something will happen. I used to like alone time, but now since I'm having more problems I can't stand it. I push myself to overcome it, because I don't want my wife to suffer because of my worry, but it doesn't always work. I try changing my negative thoughts as often as I can and it makes it bearable, I answer my negative thoughts with positive answers if you will and it takes the edge off. Not sure if its doing any good for the long run, but works for the short term.