But, she would project this niceness and happiness to everyone (She didn't have lots of friends and was always very quiet. Also VERY passive aggressive and judgmental and was deathly afraid of what others thought of her). She also didn't seem to think any of this was a problem. It ended up being very toxic for our relationship and I had a clean break and haven't talked to her for almost a decade.
I checked up on her recently and she now has a podcast related to happiness and how you can be as happiness as her. I seriously doubt she's changed. It's just more projection to the world that she's a happy person.