bf is furious with me for no good reason, am i acting crazy?

i need a break from everyone and everything, don't want to interact with anyone etc. so i've kinda just stopped speaking to my boyfriend, and everyone else to just keep my sanity. idk if it’s a mental breakdown or whatever but i just can't. because we live together, it's more difficult and he's taking it super personally, ranting about how i’m doing this to **** him off on purpose, telling me to stop being dramatic, taking my phone to force me to talk, making dumb threats. honestly, it makes me want to interact with him even less. am i really acting crazy/childish or is he just being controlling? is what im doing really that crazy?

It sounds like you’re going through a really challenging time, and it’s completely valid to feel overwhelmed and need some space. Taking a break from interaction can be a healthy way to recharge, especially if you’re feeling emotionally drained. It’s important to prioritize your mental well-being.
From what you’ve shared, it seems like your boyfriend's reactions are not just concerned; they also have elements of control, which can be unhealthy in a relationship. It's natural for him to feel confused or hurt by your withdrawal, but his response—making threats, taking your phone, and accusing you of being dramatic—suggests he may not be respecting your need for space.
You're not acting crazy or childish for wanting to step back when you feel overwhelmed. Everyone copes differently, and if you feel like you need time alone to process things, that’s perfectly valid. The key here is communication. If you feel up to it, consider explaining to him that you’re not trying to hurt him or push him away, but rather you need some time to yourself to sort through your feelings.
It might also be helpful to set clear boundaries about what you need right now. If you’re not ready to engage in conversation, it’s okay to communicate that you need some quiet time without the expectation of interaction. Healthy relationships are built on mutual respect and understanding, and it’s essential for both of you to feel heard and respected.

Honestly it's going to be both, you were trying to screw around behind his back again barely a few days ago, it's a garbage fire of a relationship and it's never going to work out.

no, i didn't even have sex with that guy or anything. i just wanted someone to talk to/spend time with. is that such a crime? i thought i was going crazy, stuck at home on my own every single day, with no friends, and my boyfriend spending most of the day at work.
he turned out to be a jerk anyway, so..

i need a break from everyone and everything, don't want to interact with anyone etc. so i've kinda just stopped speaking to my boyfriend, and everyone else to just keep my sanity. idk if it’s a mental breakdown or whatever but i just can't. because we live together, it's more difficult and he's taking it super personally, ranting about how i’m doing this to **** him off on purpose, telling me to stop being dramatic, taking my phone to force me to talk, making dumb threats. honestly, it makes me want to interact with him even less. am i really acting crazy/childish or is he just being controlling? is what im doing really that crazy?

I'm not saying anything happened, I don't know... but I don't think many people with knowledge of your relationship history would give you the benefit of the doubt regarding intentions, sorry.

Hard to tell, are you really using your phone too much or causing him stress? He might be stressed by all manner of things and bringing that stress home to you, which is a horrible situation to be in. If he's treating you like this why are you still living with him? You don't need to be around anyone if you don't feel like they'll listen, but if you have caused any reason for him to be this way, then you two need to figure it out. There's no point in living in a miserable household where you both feel angry and sad.

so... you don't think a person can change?

Not what I said and not what you asked, but you do have a significantly checkered history and you seem to have been acting in the same suspicious & erratic ways again. I'm not pretending it's one sided but I wouldn't be surprised at all that he suspects somethings up or you've been pushing his buttons.