I don't know how common this sentiment is but I definitely felt it with a previous group of friends. The behaviors you internalize just to be able to fit in with what seems like the only people that will ever like you really have no limit at all, and can lead you to do things you never thought you would.

Specifically, I strictly remember bullying this poor kid relentlessly during middle school because he (I kid you not) had lips so red he looked like he wore lipstick. You can imagine my shock when I later found out I was bisexual and that wearing lipstick is awesome actually.

And sometimes you were one all along, and you didn't know, and they also didn't know enough to recognize the warning signs until they'd already gotten entangled with you. Now you're about to gradually lose everyone as they realize how much of a drain you're being and quietly shut you out.