Is AUTHOR wrong in the post ? POST : English isn't my native language so this text will have some mistakes, so bear with me

To cut long story short, I'm in my 25-30 years old and I was living with my family, I worked and paid the bills like a good member of the house. I don't know how to explain how this problem started because it seems something from a movie, but, little by little my family started to stop interacting with me and starting to find any motive to start a fight with me

My brother started to literally ignoring me, If I asked something to him (Like "did you saw the keys?") he would make me ask him 5 times or more until he exploded telling me to shut up

My mother little by little stopped to prepare food for me and make only for her and the rest of the family (and I started to make my own)

Things like that started and got worts by the time. I think I'm a good and quiet guy, I just work, stays on my pc playing games and pay like, half of all the bills, I never start a fight with anyone, so, I really don't know why they started doing that to me.

Recently my mother's dog attacked me and got me to the hospital, when I confronted my family to call a trainer or something like that (It's a really angry dog) they said what I was predicting for a long time: "Why don't you get out of the house, then?"

And... I agreed, I really feel like my family don't liked me anymore, not only that but I saved a little money and have a good job. So I can keep myself.

Now the problem: When we were kids, my mother made some bank accounts for me and my brothers (some for each) and saved some money for emergencies (She would normally says "That's your money to use when needed", the account don't have much money, but it is something)

I had 2 accounts in my name, one she used for alot of things from her work (this had the most money), so I decided to transfer all to her. The second and last account wasn't was touched in 15 years and had less money, when I said to my mother I would give back the amout she deposited years ago + some years of extra income from the bank (I don't know how its called in english) and that I would get for me one part of this extra income (The total would be something like 60% for her and 40% for me) she started to scream at me, saying that I was stealing HER money, that I was evil, a monster and other things

I really don't know if I'm being the bad guy, but I want to put a extra point here: I have nothing, I have only my desk, PC and bed. I'm starting a new life (gonna need to buy EVERYTHING like a refigerator and microwave), and yes, I have some saved money from my job, but this money would help me out a little

I really don't know if I'm seeing something wrong, but, Am I really the asshole for "stealing" my mother's money?