AITA I don't want to give up my car so my sister's husband can have extra space to buy items he resells
I'll get straight to the point I'm 21F, I drive an SUV while the rest of my family (including BIL) have sedans. I don't want to give him the car because I have a college class tomorrow. Attendance is especially important because it's a hybrid class, and we only meet this ONE day out of the week, so my professor is strict about it. From past circumstances, I just know I can't rely on my family. I don't want to put the fate of making it to my class on them, and I feel less stressed knowing I have my car. My sister (25F) went to my mom, who paid for the car, and my mom took her side. Her husband (28M) is offering me $100. I stood firm on my no, and now I'm a villain. Everyone (except sister's husband who has been outside) has said hurtful things to each others faces at this point, and I've locked myself in my room. Sorry if this is confusing, I left out a lot. I don't usually use reddit for posting, but I'm stressed and needed an outlet.
FAQ/more info:
-I got the car for my birthday. My mom paid for the car, so she's on the title, BUT same thing with my sister, my dad paid for hers & is on her cars title. Yet she considers her car hers.
-Car swap was offered after I refused the first time. It sounds spoiled but I don't want to use another car, I'm used to my car and its features.
-I'm the only one on insurance for the SUV, dad pays both me and my sister's insurance. We pay for our own gas and maintenance.
-Dad would've taken my side, but he's out of state on business. It happened late at night and I didn't want to call him.
-My mom always favors my older sister, but I didn't expect her to take my sister's side this time because it involved my college.
-Me and my sister have a strained relationship because her and her husband live with us and she constantly lets him use my stuff like MY FOOT SCRUBBER. 🤢
UPDATE: I just got home from school, I haven't talked to either of them. My sister has me blocked on iMessage since last night, she says I'm interfering with their money. Her and her husband left last night, and took his car. I hate to give in to my sister's wants because if you give her an inch she will take a mile. Thank you for all the responses, I have read them all.
ps sorry this is so poorly written im on my phone