Most Helpful Guy
I don't really chat about my personal life with my coworkers either. Just how I am as a person. Does not at all mean I don't care about it, just to me work is work. They don't need to know if I got a new partner or not. Got enough friends outside of work for that.
Most Helpful Girl
He might be a private person. As Long as he introduced you as his Girlfriend, you have nothing to worry about.