Did your newly hired Personal Trainer nearly kill you?

I had been happily working out for a period of time. I had been really unfit so took it slowly. I was fearful of a stroke or some such thing considering my prior sedentary life style. I toned up, but did not lose weight. Anyway I hired a personal trainer, who by the way, lives downstairs from me, and lives a life fit for an army boot camp. If you follow my drift.
On my first day with her, I was lifting weights of 100 kgs, all the weights I lifted were so heavy I felt like I was tearing things. She pushed and pushed When I complained, she said all her client threw up after their first session with her. Is this right? I don’t feel it is. Plus, she told me all the way through how unfit I was. I dumped her of course. Never went back to gym. She also wanted me to do 1.5 hours cardiovascular per day with an uninterrupted heart beat. That was 7 days a week. With three days muscle building with those gigantic weights.

One thing I did learn was “it’s 80% of what you eat, and 20% exercise. If I even follow her diet and do nothing I shape up quickly. But what is your opinion on this lot? You think it was faulty?