
I think I get why most people do not like Sophie. It's because she is not interesting. For me, she was fine until all the other characters became interesting but she stayed flat. The other boys kinda has story/purpose/mission but she is not (except the plot with his father). She's just "come on Seth let's date", "watch with me", "eat lunch", and that's it so far.

Is it really easy to outcast someone? By groundless rumour, too? Like, why would the entire class do that? They were such fake friends, then.
I remember few years ago when I was a student. There was this small boy noone wanted to talk to (he was a bit difficult to understand, and didn't make effort to be social). I was well liked (not too popular but friendly enough with everyone), and somehow that boy and I got assigned together for a little project. So of course I talked to this guy and sometimes meet up, etc. And guess what, my friends were still there! They didn't like the guy but of course they wouldn't ..like, unfriend me?? Just because of that, right?? They were my friends. Make REAL friends, everyone!

I've seen this type of situation before. I had a friend that was outcasted by the whole school because someone accused her of bullying. The said "victim" was one of our classmates and she had a certain attitude that none of us found good anymore. We all noticed that and we thought maybe she needed someone to tell her about it so that she won't have this attitude. (We all were classmates for 3 years straight so we all were close with each other at this point.) My friend told her about it and she did not took it well. The "victim" started spreading rumors about my friend to her friends. Sooner or later everyone in our batch started outcasting her, believing that she was a bully. It gotten to the point where she can't go to the restroom because she'll notice people whispering around her.
Rumors are shit. No one had proof that she bullied her. All they had was a story that could easily be changed by anyone.

It is easy to outcast someone especially if there are favorable grounds to base on like humor, insecurities and curiosity.
When i was in school, there was a student outcasted just because of pointless mockery. The whole class ((even some of the students outside the class)) will sing a mock song made just for them. No one felt bad because it's just "pointless" fun. But obviously not for the outcast. Eventually, a teacher has to confront it because it was getting out of hand((but not in the level of Elfen Lied))
It is easy to be outcasted
But it's also quite easy to change the tide sometimes.
Please enlighten me. In omegaverse story, if a male omega has a baby, who will breastfeed the newborn? Or will it always be formula? Just curious.
Some omegaverse the omega have milk after birth like in Love is an Illusion
The omega.. they can give birth and produced milk.