If you havent experienced this type of behaviour, like some of the other posters have, then you, understandably, probably won't get where I'm coming from.
This is it. There are those who thankfully haven't experienced it so they don't understand the subtlety. Even as I was living with my husband I knew I wasn't happy, I knew things weren't right, I couldn't articulate any of it, I didn't even try, but once I learned about emotional abuse (thanks MN ❤) I started to see a pattern. And then I was able to start to protect myself in my own way, from the emotional side at least.
It wasn't until we were apart that I was able to see his behaviour for what it was, they keep your mind filled with their shit intentionally so you don't have the headspace to think clearly. It's insidious. When he finally left it really was as if a cloud was lifting in the room, it sounds weird, I know, but that's how it felt.
I could at last have full access to the MN Relationships boards and had help from Women's Aid and that was when the full extent of his abuse became clear to me. It shocked me to see what I'd been living through and not realising the full extent of it. That makes me feel stupid, saying it now, with hindsight and the clarity that freedom has brought me, but not one of us is stupid. They don't start off the way they end up and they don't wear a warning badge.
Blessed are those who don't get it, I really do hope it remains that way for you. No-one should go through any type of abuse.