<human>: Can you give me the gist of the text in a nutshell?

So my SO and I frequently go out with her family to eat and they all end up speaking her native language leaving me out. I know it's normal to speak you're native language but they do it so often that I feel left out of every conversation they have. I have tried to get her to teach me some of the phrases but let's just say she isn't too enthusiastic about being a teacher. 

Should I confront her about feeling left out and try to get them to speak English when I go out with them? Or just suck it up and begin the slow process of learning a German? 

She only speaks German around her family too, not when she is just around me.
<bot>: I have been with my SO for two years and still have no idea what she talks about with her parents 99% of the time.