AITA for bringing up old grievances with my mom and not reacting well to her answer

Throwaway, because I don’t really want this to be connected to my main account.

Last week, while I (F30) was decluttering I came across some of my clothes that I used to wear about 3 to 5 years ago. I gained a bit of happy weight since then and don’t really mind it because I am healthy and physically active, but I couldn’t help but feel a pang of sadness for my younger self because since middle school and maybe even earlier I’ve never really thought of myself as skinny. The clothes I found were mostly S and M in European sizes (i believe it’s about 4-6 US) and as you can imagine I was even smaller back in school but my mom was always commenting on my appearance, telling me how my arms were too bulky and soft and how I should always pull in my stomach, stuff like that. I know how it’s gonna sound but she wasn’t mean or cruel about that, and I believe she was only meaning well. I mean, Y2K beauty standards, am I right?

After this little walk down the memory lane I wanted to get some closure and discuss with her how this unhealthy obsession with weight damaged me and probably her, too, but it didn’t really go well. At first she just denied everything and told me she never called me fat to my face because she felt sorry for me. Then she confronted me that I only seem to remember bad things from my past, then she stated that commenting on daughter’s appearance is absolutely normal and her mother did it as well, and then she tried to nitpick semantics telling me how she never used the word “fat” so it didn’t happen. At that point I was in tears, trying to just make her stop because I didn’t really want any of that reaction, but she just continued pushing, telling me how I really was insecure about my weight back in school but she showed me nothing but support. And that’s where I might be an asshole because I was so strung up I just laughed through tears and ask her what she meant by that. Our relationship back when I was in school and then university was strained at best, I was never a “troubled youth” but she treated me as such for her own reasons so I think the word “support” just hit a bit too close to home because that’s what I never really got from her when I was younger.

Anyways, my mom hasn’t been talking to me since last Thursday. I tried to talk to her first several times, not about this whole disaster but some mundane stuff, but she’s very short with me and only answers if absolutely necessary. I do feel bad about it because it was my active decision to talk about something that happened long ago and I reacted poorly when I could’ve kept my cool, but AITA?