u/distressedyoungadult

I 22f have been in a relationship for about 5 months. I reposted a TikTok edit of 2014 dylan obrien the other day because like. 2014 dylan obrien was iconic. my boyfriend 21m is very upset. He cannot believe that I would do something like this and am attracted to people other than him. I'm trying to tell him that like it's the same as 2010 Megan Fox from transformers and like sometimes there's just iconic pop culture people. He is adamantly disagreeing. I get having different viewpoints but he will not drop this saying "how could you do that when we were probably talking just earlier that day" as if me being attracted to 2014 dylan obrien is a direct betrayal to him. AITAH here?

Note: I screenshot texts I sent to a friend and had AI create the story because I'm too overwhelmed to type one out on my own right now, so I'm sorry if it's sounds robotic (or if you hate AI).

I (22) am currently living at home with my mom while working full-time. My plan has always been to live at home for a short period so I could save up, invest, and build a solid financial foundation before moving out on my own (aiming for Chicago within the next year or two).
Growing up, it was just my mom and me and my older brother with autism. She was a single mom who sacrificed an incredible amount to raise me and give me a good life, which I have always been deeply grateful for.
Recently, my mom asked me to start contributing financially now that I'm working, which I completely agreed with. Right now, I'm making enough that I'm able to put away about $1,400 a month into savings/investments toward my goal of moving out, leaving me with around $2,000/month in net income after that savings rate. I sat down with her and offered to pay $500/month to cover my portion of household living expenses while keeping my savings plan on track, but that is not technically my portion because my actual portion would be significantly more.
She completely blew up at me.
She brought up everything she sacrificed raising me alone, claimed the household bills total around $4,000/month, and expects me to cover my full third of the bills plus extra to support her—which comes out to roughly $2,000/month.
When I told her that paying $2,000/month would leave me with zero ability to save or move out, she snapped and told me to just leave. She said starting tomorrow she’s cutting me off from everything—taking away access to the car she bought me when I was a teen that I use to get to work, removing me from the phone plan, and telling me to "figure it out." I pointed out that cutting my phone service right away means I can’t even load my Metra commute tickets on my phone to get home from work tomorrow, and she basically said she didn't care.
In her eyes, because I’m earning money and putting $1,400/month toward my own future, I’m being ungrateful, selfish, and "forgetting everything she did for me" as a single parent. But from my perspective:
I don't downplay how much I'm saving ($1,400/mo is a lot...), but building that safety net was the primary reason I stayed at home in the first place.
Paying $2,000/month at home defeats the purpose of staying, as I could rent my own place in Chicago with roommates for significantly less.
I’m willing to pay $500/mo, but stripping away basic phone service and transportation overnight feels like an extreme escalation over a budget disagreement.
Now I’m super stressed out, trying to make sure my job performance doesn't suffer tomorrow while navigating potentially getting cut off or kicked out overnight.
Am I wrong for how much I was planning on having her?? What do I do here??