<human>: Could you distill the essence of the text into 1-3 sentences?

Hello, both my SO and I are at Uni and have been dating for 6 months.  She is the most amazing person I could have ever met ever, and everything has been going amazingly...except one thing.  In the bedroom she really isn't very into it, nor does she want to try anything new.  In fact, lately she has been turning down sex a lot and instead giving me BJ's.  Don't get me wrong, I love it, but I want to pleasure her too but she just isn't having it.  Then today, I think she said a deal breaker, that she never really wanted to try any other positions other then missionary ever.  I was fine when she was just saying no for the time being, but she says that she doesn't think she would like it and that she wants to be face to face and she is content with our sex life.  Which right now is like once a week at best, and for university students I feel like this is low.
<bot>: SO amazing everywhere except bedroom, where she pretty much wants nothing.  Told me today she doesn't want anything other than missionary ever. Advice?  Break up?