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I (16M) and my friend (16M) are finishing up our sophomore year in 2-3 weeks. I share chemistry class with him and I sit next to him in that class. Whenver the teacher is lecturing us and we have to take notes, he is constantly on his phone watching weird videos and laughing to himself.

Whenever we are in labs, me and one other person constantly have to do all the work while he stays on his phone. He texts me everytime we do a lab to send it because he does not know how to do it, despite the teacher giving directions on how to do it.

At one point, I had enough. I told him that this was the last time I was ever sending him anything, and that he as an individual needs to be responsible for his own work. He was also complaining earlier about his bad grade in the class, and I straight up told him to his face that he should maybe listen more, and properly do the homework, and just be more focused/self-reliant if he wants to bring it up.

I don't know why, but he got pretty pissed at me for saying that. This is the same guy who was trying to screenshot my project for "inspiration" when I know he's really just going to copy it. He told me that I'm "completley overreacting." Keep in mind, same guy who once, went through my backpack and my binder to fetch the homework assignment that he didn't do, (also without my permission.) lecturing me about not having any sense of manners.

And earlier today it got even worse, I could literally sense him talking behind my back to his friends, and when I went to ask him what he was saying about me he started to act all confused all of a sudden, when we both know what he was trying to get at.

It's really frustrating to have this guy as a "friend." We are both the same age yet it feels like he literally cannot keep up or acknowledge his mistakes. He's constanly making a joke of it and thinking that he can always rely on me. I hate to be that type of person, but I [quietly] think to myself that I shouldn't be excessively giving people my work that I spent time on if they never want to learn or put the effort in themselves.

So AITA?