OP you’re not going to want to hear this but echoing pp this will not get better, it gets worse.
Abusers abuse on purpose, they know exactly what they’re doing, as explained in “why does he do that?”. It might take some more time for you to really make up your mind, it’s also likely you’re caught in a cycle of abuse - ever find you go through periods of calm where perhaps apologies and promises are made? Things have been worked out, you feel elated, a little lighter, the mood is lifted, you feel like you’ve really hashed it out and all will be well? Then gradually that dark cloud builds and you have no idea tf is up with them? And then something completely trivial or benign sets off a massive argument? The things that are said descend into topics that have absolutely no relevance, and insults are vicious and vile. Are you ever left feeling exhausted or confused? Do they make word salads (switching topics so quickly and directing a barrage of criticism, insults or questions at you designed to deflect from your well made points or line of questioning to them) also includes going off topic so you forget what the original conflict was about.
All this and more. Mine started with bad moods and silent treatment (which I blamed myself for - why couldn’t I just be better? Why do I keep putting my foot in it?), after having children it got worse, the name calling, the criticism and other things too.
You probably won’t believe it right away, we all need to figure it out for ourselves as we like to hope something can be salvaged, you like to hope they can see you and hear you and change, be reasoned with. You think they see you like you see them - you see what you like about them as a whole person and accept their mistakes and flaws. They don’t see you as a whole person, you are more like a thing - you are useful, for practical things and for supply. These people have an inability to emotionally regulate themselves properly - you serve as a filter for that, they can’t process guilt or shame, so they must make you feel shame for them, which is why they will criticise and shame you. They don’t love like you do, they aren’t capable of it. All this abuse is also typically interspersed with displays of gift giving and affection, perhaps kindness and them acting like their old selves you knew before, particularly when you call them out on it in a way that might make them think you’re considering leaving the relationship, they will also need to replenish your emotional stores so they can drain you again at a later time, like an emotional vampire.
I feel like you are already sick of being an emotional punch bag. There is no point in trying to figure out or reason with their arguments and behaviour because it isn’t reasonable, it serves to antagonise and drain you emotionally, they thrive off any kind of positive or negative attention.
The only way is to leave, and grey rock, but you will figure this out for yourself.
Good luck.