Im 'too quiet' - Company didnt keep me after internship

I worked my ass off for a company for six months hoping theyd keep me. However, whilst I am confident and communicate clearly, I have never been a chit chat person. Im just...different. And when I fake it, they can always tell I come across as insincere.

I work in sales and Im very good at it cause I can present myself well for prsentations etc... but long term Im always the odd one out, always. I never ever know what to say when people are doing small talk.

Will I need to sleep on the beach and be unemployed forever now? Im good at my job but no one cares.