NTA

i will say tho, i don't think her opinion itself is a sign of insecurity. sounds like you guys were just sharing your opinions and she couldn't stand you having a different one. its actually the fact that she feels you were trying to insult her or say something about her body that makes me believe she probably is insecure. i.e. i personally am really not into fake tits or any sort of obvious kind of plastic surgery. i do find it unattractive and i don't think that has to always be a "mean" thing to say, depending on the context and the actual language used, but it would be insecure to read into someone who is simply (and politely) disagreeing.

sorry if im getting way to in depth i took some adderal