<human>: **Should have clarified in the title that's it's HANGING OUT WITH HER FRIENDS. I don't have a problem with hanging out with her as we live together.**

My girlfriend lately has been really stressing me out. Whenever someone wants to hang out, she really tries to drag me along even after I tell her I'm not interested. 

First problem, she tells them that we can all hang out and makes plans without even asking me. 

Second problem, then when I say I don't want to she will come up with excuses as to why we should. Such as "Oh we won't be out long", "the roads should be clear of snow in a few hours", or "I already told them we would and I don't want to look bad" 

Third problem, then once she accepts the fact that I mean NO. She will text them and instead of, "oh were busy", it's "My boyfriend said no, so we can't, maybe next time he will be up for it"

Final problem, she lets her friends talk her into anything which means if they keep begging to hang out, she will keep trying to make excuses to me and getting mad at me when I say no. 

I tell her she can go alone but she insists that of she does that I'll think she's doing something behind her back, which I won't! Then it's a huge list of excuses as to why we should be going out. Then when I get mad because a no means no, she gets super childish and acts like it's my fault to everyone. 

I'm more of a homebody. I don't like going out every other night.

What do I do to solve this cycle, because it really ruins the whole day for me and for us. It instantly puts me into a bad mood and us into an argument all day.

Can you give me a shortened version of the text?
<bot>: Girlfriend makes plans involving me without me knowing. I say no and she tries to justify why we should hang out. Then tells the people we were suppose to hang out with that's it's my fault.