Hi Hendrix
Stay single ! As others have said, you can still feel alone even when there is a partner or others around. We all get into these days of feeling so isolated and then all of a sudden it passes for no known reason.
Be kind to yourself - give yourself a treat of some kind. Maybe (like me a bit of special handcream), or some chocolate or a bunch of flowers or even a massage) and just wait patiently for the feeling to pass. It will.
Sometimes others just cannot understand where you are at this time so do come online and talk to others as we do know how you are feeling.
Big cyber hugs Summer :-)