Been in a LTR for around 1 yr. She has been very submissive and gives me little to no shit tests.

Yesterday we got into a discussion in which she disrespected me. Context: Her best female friend started a new job as a financial advisor (side note she has never studied or was into Finance stuff at all before). These financial advisor make money off of you signing contracts. These so called finance advisor seem very dubious. Her best friend is always trying to convince me to sign numerous insurances and stocks in the stock market with her. I work as a IT-specialist for a big German car company and make a Good 5 digit salary. And I know my shit and invest myself. I politely decline her offers. Now her boss who is brainwashing people who are hoping to make quick money also brainwashed my ltrs best friend is a 27 year old Dude (also never studied and if you google theire company it says every where snow ball system not serious). I told my ltr these people are clowns who are trying to make a quick buck and you fell for it but that’s not my problem. I got kicked out of my parents home with 14 and lived on my own since. Struggled my whole life to get where I am at today. And my ltr defends the guy and say I am dumb and not open to learn from this dude in finance and in life. I could’ve belive my ears telling me i am dumb cause I can learn from a clown who has never achieved shit in his life. Anyway I tolle her quietly never ever disrespect me like this ever again. And told her to leave my house. She got all emotional and cried. I am unsure how to proceed. Would this be a deal breaker for you or am I over reacting. And if so I will not contact her until she comes back and makes it up to me. Would you proceed otherwisE?