I absolutely hate being alone. My SO kind of makes fun of me for "not acting like an adult" and gets…

I absolutely hate being alone. My SO kind of makes fun of me for "not acting like an adult" and gets rude with me about it but I seriously can't help it. I hate being home alone. For about 19 years I never spent a day alone. I lived with myself and brother so I always had someone around. I know I'm safe here at home and that's now what bothers me it's just the "alone" part that gets me. For some reason it just completely freaks me out and no matter how many times I try to stay home alone I never get used to it. I don't understand. 😔