STYLETHREAD -- LET'S TALK SHOP!

I am a regular poster, I'm sure you'll figure out who I am at the end of this.  I'm just going through such a hard time and not really sure of what to do with myself.

When I was little my father was abusive to both me and my older brother (B).  My parents were in the middle of a divorce/custody battle and I would often return from visitation with stories and visible scars, sometimes bleeding.  She eventually decided to leave the state, violate some laws and never return, for our safety.  She raised us as a single mother, with little help from her parents (who have since died).  B was never very good in school and at age 16 (I was 13), dropped out of high school and got a job.  As B and I got older, we contributed financially to the household.  I went off to college and B paid the rent while my mother paid all bills.

Several years later, he married his long-time girlfriend (M) and moved 30 mins away into her family's house.  They then had a baby and my mom moved across the street from him and watched their baby while they both worked.  B and I agreed that we would split her rent ($450 each) and he would eventually buy a house.  M has always had a jealous, contentious relationship with us.  She is controlling and borderline abusive to him.  She resents the money that he gives her.  The years that followed were awful for mom, as they treated her like a slave and she felt very lonely, used and unloved.  M then got pregnant again and quit working to raise both children, relieving my mom of the duty.  M is now pregnant with her third.   Mom has been helping M out a lot, coming over every day to get her kid ready for school, feeding, bathing the kids, etc.  B&M decided that they needed a bigger place to live.  They found a 4 bedroom house that has a small bedroom in the basement for my mom to live in.  His rent would be increasing from $500/month to $2400. 

On Saturday, B called me and told me he was signing a lease the following day (this was the first time he told me they were even looking at apartments) and that I would have to give at least what Im already giving.  I was shocked that he would want me to contribute to his new rent and that he would want that MUCH.  I have not been doing well financially, I was laid off three years ago, took a pay cut and all of my bills have doubled, including my rent.  I asked him how much he is charging her for rent and he got angry and refused to say that he was charging her anything.  Apparently, he had also discussed her contributing to his rent as well.  We went back and forth a bit; I told him that I have creditors calling 8x a day; after less than 2 mins discussion, he said, "Take the $450 and shove it!" and hung up on me.  Within an hour, he called my mom, told her he cancelled the deal with the realtor and that he was no longer going to find her a place to live or contribute financially.  I waited an hour or so and called him back to further discuss, as my intentions would never be to leave him high and dry.  He picked up the phone and as soon as I got one word out said, "Fuck you!"  I called back again, he said, "I dropped out of school so I could provide a house for you while you went to college and this is how you repay me?" and hung up.  I called again, he said, "How can you do this to my children you fucking selfish bitch!"  Mind you, I'm not cutting out anything that I said, he literally yelled at me while I was quietly on the other line.  The following morning, M texted me saying, "As far as I am concerned you are no longer welcome in my house nor are you allowed to see my children" then ranted on about inane things like a vacation I took 2 years ago.  She also un-friended me on facebook.  I'm not really surprised since she has major fights with at least one friend per year, cutting them off entirely, writing nasty things on facebook about them, etc.  I did not write back.

B doesnt even have a good relationship with M, has talked very seriously about divorce even as late as this summer.  I completely understand that his family is growing, that he needs more money and that he might have been shocked/insulted that I didnt want to commit to $450.  That said, it seems odd to me that he flipped out so easily, wasnt willing to talk about any alternative arrangement and called the realtor to cancel within the hour.  It all seems so irrational, so very unfair and so sad to cut your family ties over money.  Also, he seems delusional since he convinced himself that he never finished school bc of me (he was out of school for 6 years before I went to college).  Mom earns probably $300/month with her crocheting business.  She cannot apply for any public assistance because she is not a citizen nor does she have proof of any other citizenship status.  She doesnt want to apply for any status because shes afraid of the laws that she broke years ago and is convinced that she will be arrested.  She is extremely distraught over this, accidentally let it slip yesterday that she called a suicide hotline.  She is most upset that she will not be able to see her granddaughter, who she basically raised.  I live in a junior one-bedroom apartment.  I dont really have room in my apartment for her and I am sure I will get in trouble with the super but for now, I think the best I can do is move her in to my place.  I don't have any other family to turn to.  I am stunned and overwhelmed, not even sure of why I'm writing this but I guess I just needed to get it out.