Flair Airlines complaint: Rude customer service

The customer service attendant was very rude, no skill to talk to the customer, had her headphones on , couldn’t hear when I relayed the information she wanted . Had to repeat myself couple times, even though she didn’t get my email address correct. My daughter was observing, she saw the the attendant had her headphones on , so my daughter said to her , if you only take those headphones off then will be able to hear , I think the attendant got offended and started threatening us that “I can deny your boarding “ my daughter said that she didn’t say anything offensive or wrong and she wasn’t traveling , why would you deny my moms boarding. The attendant raised her voice again and threatened that she can deny my boarding. We left the counter and proceeded to the gate . The same attendant was at the gate who was going to serve me , she asked me to step aside, which I did. She checked everyone in and came to talk to me asking for an apology, I asked her for what and she said that I was rude to her while checking in , I tried to remind her my daughter didn’t say anything wrong, she said if you don’t apologize you won’t be able to board. I even mentioned that she assumed things, she replied maybe I did but I need an apology, so I said sorry, she replied it’s not genuine enough and started talking to her colleagues in her language. I asked what else can I do or show my apology . She kept insisting that I won’t be able to board . I asked her what would be my next step /what should I do if I am denied, she won’t answer. I think by the reactions of her colleagues that they were not agreeing with her but then they have to support their colleague. I felt disrespected, humiliated, judged, belittled by this particular person. She went ahead said that she will put my name on red list for all airlines . I just had to get home so didn’t say much there . I thought customers come first , we were not rude, raising our voice or saying profanity. She just assumed we were rude, I said to the attendant at the gate you don’t even know me , how can you say that I was rude. She said she assumed.
I have travelled to lots of places only encountered this situation at yvr airport, travelled with flair via yxx , never had the attendant who was rude with attitude. Seems like this particular attendant was power tripping, without any reason