I can often be much calmer when not around other people as I stop switching in response to other's needs and only switch according to my own internal triggers. This is probably why I don't have a partner or friends!
But it isn't always like that. There are plenty of times when i am alone and triggered as all get out and switch like crazy anyway. But for me, being alone is definitely LESS switchy than being around other people because we don't have to accommodate interpersonal needs, just our own.