my high preferences (question)

so I've been smoking weed avidly since 8th grade. i'm a current college sophomore. I've come to learn that when I smoke by myself, I don't get anxious, nervous, or socially awkward, i enjoy it much more than smoking with people. I've always been kind of selective when it comes to smoking with people. for example, i will pretty much only smoke with my 2 best friends. rarely will i smoke with acquaintances. when i get high i get super in my head and analytical. im kind of bad with my words and i feel a little awkward. does anyone have any insight as to why I am like this? why do i get so awkward and paranoid when i'm high with others but not by myself?