It's not just ADHD, it's ️chronic️ ADHD
ADHD is trendy on TikTok (no hate as TikTok was a large reason I sought diagnosis) and she is just milking it for views. Wouldn't be surprised if that's why she joined TikTok in the first place.
However, she will find that the ADHD content on TikTok that actually does well (from an extended monetary perspective rather than one-off viral videos) is the *educated* content — i.e. people who post real tips for managing ADHD, research they have done to understand their own ADHD... not people who do ADHD 'memes' using buzzwords like "chronic" when ADHD is, by definition, chronic. Just shows her ignorance and keenness to monetise it / gain clout from it. Further proved by the fact she seems to have already deleted it.
ADHD has in ways ruined my life, CBA with people glamorising it regardless of whether they have it or not.
P.S. ADHD doesn't cause commitment issues, I have been with my current partner for 9 years