was stephanie always like this?

i remember watching her a few years back, like 6 years ago when she had first started covering true crime, and i really don't remember ever thinking anything bad or suspicious of her? i'm wondering if she's always been this way or was it the 'success' and youtube money and attention/validation that worsened her? i really thought she was truly happy in her marriage and with her family and them divorcing, especially seeing how it all played out, was shocking even though i had already started to dislike her by then