The others are completely right. In a week or two the whole matter won't seem like a big deal. But from your words I take it that is seems like a big deal to you now.
Perhaps try thinking about it as one of the stories of your life. You know, the usual stuff. You are the heroine and you are just as the point where you have reached the crisis. Now you make your choices and you will be changed a little bit as a result.
Of course this whole episode might be the start of your career as a serial killer, but in real life things are usually much less dramatic. The real choice here is whether to be tough or weak, and if you can be tough now, you will find it much easier to be tough in the real, much more severe crisis that await you in the future
Most people don't get what it means to be tough in such situations. Tough means to be confident. Julius Cesar wrote about this, Marcus Aurelius, Seneca. The core of the matter is that Boop has no power over you.
What could he do? Call you names? That doesn't hurt. Steal your favorite pen? So what? Buy a new one. Spread lies about you? You think he could do that? A guy who blows up at simple puns and doesn't get it when he gets trolled. No, the people who know would see through it immediately and you don't need to care much about the others. It seems you have your friends and you understand each other, and if anything Boop brings you closer together.
Other people only have as much power over you as you are willing to give them, because the only real power they have is to affect you psychologically. One of the superpowers that come with being an intelligent educated person is the ability to switch this off and take this power away from the bullies.
Next time Boop posts something nasty. I want you to smile. I mean, actually smile, for like 2 minutes. Do it, even if you don't feel like it. Use a watch to time it. It's a trick for convincing your body of what your mind knows already: This guy is ridiculous. Laugh about him. If it helps, imagine him sitting in front of a computer in his underwear, angrily hacking away at a keyboard, spewing petty insults and empty threats. It's all water off a duck's back anyway. He's like those kids who make their 5th alt to rant at mizal after they got banned. Who is affected by this now? Not you, is it? No, you are smiling, laughing even. It's that pitiful creature Boop who's suffering.
It's actually good to have an opportunity to practice this. As I said, you will come out changed, but stronger. Letting such small matters just drip of your Kevlar skin prepares you for tougher things to come.
A few years back I was in the US, so for me a foreign country, different continent. I had a new job and didn't really know anybody. My family was in Europe and my father had died the year before. Within a few weeks I got weird symptoms. I didn't think much about it at all, but after a week I had real trouble moving my fingers and I couldn't see clearly anymore. I ended up in hospital and they did all kinds of tests. By the end of the first week I had accumulated $40k in medical expenses and I got a diagnosis of multiple sclerosis. As a man that means your mind and your body declines until you die because can't breathe anymore.
Honestly, it was pretty shit, but I found I could be happy about one thing happy about one thing: As an intelligent and educated person you can see these things rationally. Not quite water off a ducks back, but there is no need to panic either. I think, the panic, the fear, the desperation is what really sting. It's what does real damage to you, the horrors you create for yourself. I found I had the ability to turn those things off. This really is a superpower. It made things so much better: I was in bed, people were bringing me food, and it wasn't even boring. I thought a lot about my life, but I was pretty happy with how it had gone till that point. There was the prospect to die sooner than I would have liked, but in a sense I thought it would make a good tragic story,people would remember, and being dead doesn't actually hurt as far as I know. So I just accepted the possibility.
In the end all this mess got resolved. The diagnosis turned out to be wrong. The symptoms were due to two very minor things that conspired in an unusual way. Both were easily fixed. Two weeks later I was back at work and the insurance paid everything.
By now this episode is in the rearview mirror. It has become one more story to tell, one thing that still helps me seeing things in a much more relaxed way. Nowadays if somebody tells me they are going to create some trouble for me at work, I just smile. You can do the same.
The thing is, when you are 90 and sit in some care home, you will be happy about every story to tell. Without crises there wouldn't be stories. Who would want to live a boring life.
It seems I am living up to my reputation for long posts again, but there is one more important thing: I said, in this situation you have the choice to be tough or weak. If you find find you cannot be tough, do what mizal said. But your Endmaster grin on and banish Boop from your life. If you chose to be tough however, remember that tough is not the same as hard.
Think about it this way, Boop is obviously already a troubled unhappy person, who has just alienated his friends and is deeply confused by life. Also he lacks your (newfound) ability to insulate his emotions from these matters. This whole issue affects them already way more than it does you. So if you wanted you actually have the power to make this so much worse for him. He obviously cares deeply about what you say or else he wouldn't be so aggressive. You could quite easily make his life hell.
Don't actually do it. It's what weak people would do. Most nastiness is weak people compensating their own insecurities. Tough people don't need to go there. Your toughness affords you the luxury of being kind. You don't need to squash what can't sting you. Boop sounds really troubled and confused, so perhaps all he needs is someone to tell him that it's going to be ok. Or, maybe there is some other mess going on in his life. Maybe somebody needs to show him how he can be tough himself.
Also: This is water.
