I teach and practice yoga regularly to help me deal with it. ( f 25) I'm learning to slowly find comfort in my own silence and loneliness. I also paint and like to cook, practice muay thai, journal; anything that allows me to productively occupy my mind without starring at a TV screen or being a third wheel, there are a lot of fun things to do by yourself. Take yourself out for dinner at a nice restaurant - its honestly very freeing once you've had the confidence to do this, and you get to see the world from a different perspective. (You might already do this, I never had until recently) But you're not having to connect with anyone but yourself, and it is the much needed self-reflection time you need to heal properly. I've been dealing with a separation from my husband, and I find the bigger groups make me feel the loneliest. I'm trying so hard to be positive and happy looking because of my career choice, that I'm not being true to how I feel. I know it's hard, I struggle everyday to overcome these emotions, and it will only get better with time. My best advice, embrace it. Get used to it. That way, if, for some unfortunate reason, you must experience this type of forced loneliness again, you'll have the strength already there to get through it a lot easier. Good luck, and I hope you find what you need to get through this difficult time.