My BF exploded over my computer settings

As the title says, my bf got very defensive over me asking him to please leave my computer settings alone. He’s done it before and he likes to “optimize game picture” and will mess with his settings on his monitors for hours to get it to his liking. Earlier today he turned my computer on because he didn’t believe my tower had Wi-Fi capabilities, so I told him he’s more than welcome to turn it on and look because that’s how I’ve always had it rather than an Ethernet cable. Que the sound of my monitor being messed with. I asked him to “please leave my settings alone, I like them where they’re at.” And he continued to mess with them and told me “there, it’s back to the way it was.” But a glance over my shoulder told me my screen colors were not what they were previously and I asked him again “please turn them back and leave my settings alone.” To which he STILL was messing with them and I said for a third time more sternly “I don’t mess with your things, please leave mine alone.” To which he shoved my chair from the desk and angrily stated “fine then, don’t ask me to help you with computer stuff ever again. Good luck!” Then proceeded to lay in bed, watching YT reels for hours before he still ignored me and has now been sleeping for the past 6 hours. I’m upset, I don’t feel like what I asked was wrong and I don’t believe I was ever mean with my tones. I left for a while in my car and cried in a gas station parking lot since the room felt awful with him just laying in bed and ignoring me completely. He gets attitudes like this from time to time and I never understand why they go to 0 to 100 real quick in my eyes. He did get pissy and asked “when have I ever messed with your computer?” To which I gave him the multiple times he has and somehow he can’t remember ever doing such a thing, so I’m the liar and crazy one I guess…..

I’ve been with the man for 5 years now and am unexpectedly expected in June with him…. Moments like this make me rethink our relationship and almost regret getting pregnant with him… any good advice or mature way to handle these outbursts from him? Am I the actual crazy one?

TD;LR I set boundaries and my bf gets and attitude about it