There were people in the school who were “popular” and liked to pick on other people. And they knew she was Catholic because, as I said, she defended her faith. She’s pretty introverted so no, she didn’t make a big deal out of what she was eating. Some noticed because they were Catholic themselves and just had to comment that they were eating meat anyway on Fridays during Lent. (And no, she didn’t speak up to them, she let that go, but that’s how those discussions sometimes got started, as they looked for other Catholics who were following or not following teachings). One time she forgot, started eating meat, and another Catholic pointed it out to her, so she stopped eating. And she was given a hard time because as long as she started, they thought it was stupid she didn’t finish.
The way you poke is fun by talking about how ridiculous it is to follow what the Church says about not eating meat. You don’t say “ha ha, you can’t have a cheeseburger”, you say, “What a stupid Church with stupid teachings, why in the world would you do something like that!” (Only, of course, some use much worse language and worse insults.) I didn’t say or even imply that she was emotionally shattered by it. I just suggested to the OP to know the faith and the reasons for things, like she did, so if anybody does say anything, the OP can educate that person. Note that I commented that she actually changed some people’s hearts.
I don’t know how your school was, but there were a lot of “Catholic” discussions at her school. For example, there were the teachings about “Catholic greed” in referring to, for example, the crusades. Science classes liked to tell of how anti-science the Catholic church is, and the astronomy teacher even had stuff hanging in the room, such as things about the Pope’s apology about Galileo being too little, too late.
One teacher, who became Catholic because of his wife but obviously wasn’t Catholic at heart, made comments about things like signing a form to say he’d raise his kids Catholic (before he became Catholic, of course) and when a bunch of kids talked about Catholic greed again, he said nothing to stop them. I don’t see how that comment even had any place in a classroom.
So when classes are like this, and my daughter intervenes, it is only natural that it carries into the lunch hour.