I have to agree with the commenter saying she doesn’t sound like a classic people pleaser.
I’m a people pleaser! It’s one of the co-morbidities of ADHD. I have something called RSD - rejection sensitivity dysphoria. When someone doesn’t like me, it physically hurts. It feels dangerous to not be liked.
I’m not being intentionally manipulative but you could argue there is manipulation going on in people pleasing: they change themselves to make you like them.
Having said all that, I think if your instincts are telling you that you should stay away, trust them.
How sad that she has no friends, but that’s surely telling. Being a people pleaser doesn’t make you friendless - for me it’s the opposite. I have a lot of friends because people are so important to me! I just keep the peace incredibly well. We almost never fight and I carefully choose people who my values align with so I don’t have to pretend.
I saw a TikTok that made me laugh so much once, as a people pleaser. It was “Oh you like my personality? Thank you so much. It’s actually not mine though. I designed this one specifically for you based on previous interactions, what you like, what you respond to, I have one for every person I know. And this one’s yours! Glad you like it!”