Is AUTHOR wrong in the post ? POST : Gf and I moved in together not that long ago.  It’s been going ok except for one thing.   Her sister is always here.  Multiple visits during the week.  Then on weekends she’ll come spend a night, sometimes the entire weekend in the guest room.  

She lives with her parents as did my gf before she moved in with me.   I can understand that she misses her sister and that staying here is probably a lot more fun than at her parent’s, but Jesus is she annoying.   I’m starting to really hate her.  Plus I’m always out numbered on stuff like take out and tv.  My gf doesn’t see the problem and it’s actually led to our first fight living together.   She says that she lives here now and should be able to have her sister over if she wants.  

I work a physically demanding job and weekends are pretty sacred to me.   I don’t want her here anymore.  She can visit during the week.   Gf only works part time so there’s plenty of time they can spend together during the week, but I want a no more weekends rule.  