Not at all. I'm exactly the same. Id explain your feelings to your gf, and tell her how bad it makes you feel, and ask her how she'd feel in your shoes. If she cares about you, she'll make an effort to stop doing it so much.

To cover the assess of the company employing them. If you don't understand the legal responsibilities and obligations, then they don't want to take the risk of letting you loose on the job and risk facing possible reprimands.