My girlfriend of 10yrs wants me to distant myself from my family...

I’m also a girl and we have been together for so long. We have been living together for five years and when I go over for family events my girlfriend doesn’t go. Nobody knows about us being together and my mom has already told me that she will no approve of me being gay. My parents don’t really like my girlfriend that much because she was the person I left home with. Everytime we have an agrument it’s about the same thing that she isn’t invited to go to my family events. What should I do she wants me to quit going to family events from now on?