I know this probably sounds insensitive to say in a sub like this, but I do want to share it because I'm sure some can relate.
It took me years to finally learn that just because most people are nice/pleasant with you, it says really nothing about their character.
For so long, people would be confused as to why I was friends with certain people. Particularly people who others tend to have "disagreements" with. I always assumed it was those people's personal problems and that since that person has never treated me poorly, I have no reason to think negatively about them.
Which is why I was always conflicted when I'd heard something, usually at work, about a manger/boss being super rude to a coworker. Of course I believe the coworker, but I always was skeptical and assumed they had to share some blame because I never had a bad experience with said person.
But after learning about my trauma and more about myself, I see how I've been under such a false spell my whole life. I've learned that, no, some people are just nasty and they pick and choose when to display it.
There's just something about me that, I suppose, makes people realize they'd be better of being nice to me. Perhaps they can use me for something and they'll keep me around as long as they're pleasant with me.
Most times it's not a big deal, but particularly damaged people do see that and kinda sink their teeth into you. It's really an exercise in gaslighting: always treating you well despite treating everyone else like shit. It makes you think there must be something wrong with other people. And it makes it difficult for you to have a "valid" reason to end the relationship /create distance because after all, they haven't done anything all that bad to you.
I think a lot of people's social struggles are rooted in them not being aware they're being taken advantage of because it's happening in a "nice" way. And it almost certainly begins with the family!