Cinnamonsun

A rhetorical question here. Which is better, a small group of sincere friends or a large group who don't care about you, only pretend to?

We can often fall into the trap of wanting lots of friends so leave ourselves open to the kind of behaviour you've experienced. Please be aware that I'm not blaming you. Humans are social beings and in most cases, need interaction with other humans. Sadly, we often don't have the life experience to apply a filter.

You are not a horrible person. You're just implementing what many are too scared to do, so remain in so-called friendships that are toxic. I agree with other posters, block them. Move on. Yes, you will question your actions at first even with a touch of guilt. Over time, their behaviour will take less space in your thoughts.