I don't feel like being alone

I'm in this apartment right now, at my desk, in my own space. Ashley is in her room with the door wide open, welcoming anyone who walks by. Kayla just walked into our place. But I feel like I'm in a different realm. We're all in the same place, but I'm not with them. And its nothing that they are doing. They are being perfect friends and room mates. It's me. I just can't bring myself to be a part of them, or anyone right now, and I can't snap out of it. I feel alone. Everyone I call doesn't answer. I feel like no one can hear me, and that no one knows that I exist right now. And the worst thing about it is that I don't feel like being alone.