Breakups abound.... changes all around....

The last 10 days or so have been insane! I've heard from two close friends that they are getting a divorce from spouses of 6 years or more, and then to top it all off last Saturday the girls got in a huge fight and are separated now. I saw it coming, but I was hoping it would hold off until they moved at the end of next month! so now Chels is living with her sister, and Amyee and Robert are still here at the house with me. You would think with them being in two different houses, the drama would be less, but at times it feels like its worse! and now Roberts been pulled into the middle, with Amyee telling Chels that he doesn't want to live with her, (which he doesn't, and won't be) and Chels telling Amyee that Robert was telling people that he didn't know that he didn't like how Amyee treated him, and that she was to hard on him (which he swears he didn't do). I'm really pissed that he is finding himself in the middle of all of this crap. I hope they pull their heads outta their butts pretty quick or I'm gonna be forced to say something! he may not be MY kid, but he's a kid in MY house, and I'll be damned if he's gonna get drug down into THEIR issues!
SO... Cheryl is moving sometime near the 21st of April which is when she is expecting to receive her first Social security retirement check, and Amyee and Robert are moving in to her Aunts old house with her dad at the same time. I promised Rob after they moved that I will NEVER have roommates again not even for 2 or 6 weeks like this was supposed to be originally! NEVER again!!
Then last night my in-laws come over to visit, and while I was out running Amyee to work and going to the grocery store to pick up stuff for dinner, my Husband finds out from his dad, that as soon as the girls and Cheryl move out and the garage is clear, he intends to put up drywall, re-do electrical outlets, and create a "grandmothers cottage" for my Brother-in-law to move into!!!!!!!!
I'm beyond frustrated! I don't have the ability to say anything at all, I mean its is my Father-in-laws home, He pays the Mortgage every month for us, and he pays for our medical insurance for our family....he also has been supporting my BIL for his WHOLE life he's always paid for his home, his medical insurance, his car, his car insurance, his utilities, his groceries, EVERYTHING.
and i know he can't afford to keep doing that for him....but does he have to drop him on US? I mean my BIL and I have gotten along alot better in the past few years then we ever have, and I know that he has honestly been working on changing alot of things about himself and he has become alot more polite, and conscious of others, but I don't want anyone else in my house! I know that he will technically be living "outside" the house, but I also know that he will be in here all the time, and I just don't wanna deal with it!
A few months ago I would have told you there was a very slim chance that we were ever leaving this house, even after Rob got done with school, we could very easily have afforded the mortgage payments on his new salary, and it left us close enough to his dad and wife that we could help them in the next 10 years or so as they started to get older........but now, I don't know... I will NOT take care of my BIL for the rest of my life, and I really don't know if we will have the credit to ever buy a house in our future after everything that has happened to us in the last 10 years, and I don't know if I want to pay the rental prices in Bakersfield! of course I don't know where we would move either.... If it were just me to think about, I'd be on the next plane to South Carolina, but I have to consider that the kids have a very good relationship with my in-laws here, and we have a pretty good thing going with the Charter School right now (at least for elementary years) I don't want to lose the friends the kids have made, or the programs that we get to be a part of for nearly free (how many homeschooling families get gymnastics class for 35 dollars a YEAR, or memberships to the local animal reserve and museum for free!)....I mean its not like teachers make bank or anything! I guess time will tell what the future holds, and for now, I'll just keep holding on!