Feeling Lonely: The Middleground Between Depression and Happiness

I feel kinda lonely today. It's like the middleground between depression and happiness. Nothing's wrong at the moment. I have family, I have friends, and yet I know that in my worst moments, no one will be there for me. They have expressed that they cannot handle the deep depression that takes hold of me when I slip. And I guess that's why I feel so lonely, isolated, and apprehensive lately. I know that if such a spell were to come over me, there would be no one to help me through it because it's too heavy, too dark for them to handle. I'll have to trust myself to push through it alone, and the very thought terrifies me. I know it isn't fair to expect anyone to manage your emotions. But the fact no one will be there for me even if I'm drowning in them... I guess in the end, you can really only count on yourself.