Yeah, you dont know my brother in law, you dont know my life, but thanks for all the assumptions you just made about me random internet person! Its called ranting.
Um, duh?
Don't put info out here if you don't want someone to comment on it.
They know we're interested in hanging out. I had invited everyone over the week prior and neither the FIL nor my SIL could make it, so one would think that they would have thought to invite us...my brother in law is the self absorbed one in the fam. He is the younger brother and everyone in the family bends over backwards to give him special attention because if he doesnt get it he throws a fit. After 10 yrs of being with my H I am used to it, but it does irritate me from time to time.
Who did the inviting, BIL and SIL, or your parents-in-law?
As far as BIL "throwing a fit," then you just ignore him. By getting pissed off at him, he's getting exactly the attention that he wants.
My problem with the FIL's girlfriend is that who, when invited to come to your house for the first time at thanksgiving, tells you that they are going to come over the week beforehand and close in your porch and rent tables and chairs when you're the one hosting the event!? Its wierd. Its rude. If you don't think so - then you're wierd and rude too.
Um, so then you say, "Sorry but we won't be able to accommodate you before Thanksgiving. And we're all set for chairs, thanks! Come on Thanksgiving Day and bring your appetite and we'll have a great time." End of story.
It sounds like she may have just been trying to be helpful, especially if you are planning to seat people in two separate rooms for dinner. Maybe she just wanted to offer another solution so that everyone could sit together. If you don't like the idea of everyone sitting on the porch, that's fine, but you seem mighty offended by the suggestion.
I don't really find it "weird" (not wired) and "rude" if that was her intention. Did she say it in a nasty way or something? It sounds like she was just proposing an alternate solution. In which case you simply say "no thanks." I get why you don't appreciate someone else trying to make the plan, but you REALLY seem reluctant to give up control here. It's not like she's going to force her way into your house, hold a gun to your head and make you put the chairs out there. Chill out.
Re: I love a good "you don't know me post"
She's going through a hard time y'all. Stop being so rude as to give her advice.