IIN that my social phobia gets ''weaker'' when I'm alone in public?

I'm the exact opposite. If I go out with friends, I feel like I have someone who can vouch for my authenticity. I don't care what they look like. And it's not like I need them to help me socialize, often times I'll just go off on my own anyway. But because they're there, I can sort of prove to other people (and maybe myself) that I'm not just some lonely creeper.