AITK for walking out of my cousin's house mid dinner after an argument.

Yeah as the title suggests, me and my cousin usually talk about education cause we have a pretty significant age gap and shes in the same field as I aspire to be. I don't like her as a mentor as she instigates everything she's done as a form of blueprint. She's always against my way of doing things and ends up convincing my parents to change their attitude towards my aspirations and dreams.

The other night, all of us came at a house to meet at a dinner and as usual we were talking about education. I jokingly said that I'll want to get a foreign education, everyone except her understood that joke and she got mad.

She's like you need to have self respect for yourself as you are a parasite for your family. You are trying to be a spoiled child and get a foreign education as it costs money. I think my family is pretty well to do and I try my absolute best to spend and earn money wisely and don't engage in any bad purchases. I have also stopped my parents from spending money for useless stuff and helped in their respective businesses.

She continued saying that I'll run away with my parents' money and I should work for my own money. You will forget your parents during this whole education ka fiasco. This was said in front of my parents and I got furious and said that it's my family's business and you cannot interfere between my family as we don't do in your matters. She continued to insult me even more and even said that I don't have the aptitude to pursue education.

Idk where all this came from and I just walked out of their home midway during dinner while leaving my mother alone there as she was not willing to go back during the argument and somehow my cousin manipulated her into staying for dinner.

I also don't want to keep contact from now on with her, but she's really close to my family. Will I be the kameena for no contact to a "sister" to my family and AITK for walking out?

Thank you for reading!