It depends where they fall in the scale of malignancy. Some of them are just selfish and don't care if it hurts you so long as they get what they want. Others, enjoy hurting you.
Some of them fall somewhere inverween on that scale.
Usually I'd say they are opportunists. They might not sit back and play out how they'll fuck you over. But they'll happily take the opportunities as and when they arise.
Ultimately though whether intent or planning is there or not, the end result is the same - they hurt you. And at best, they're fine with that.
The bare minimum a partner should be is a nice human being through and through.
A year was far to soon to marry unfortunately. Even double that would be a huge risk tbf.
But hey, we all make mistakes.
The important thing is to know when we've made them and be prepared to cut our losses. Not hanging about trying to flog a dead horse.
It sounds like he is controlling and...a walking red flag. But what we KNOW for sure is - he isn't nice. That's enough to call it a day.
Because you deserve nice. And so much more.
Ps: you'll probably be alive many many more years, there's plenty of time to meet a good guy who treats you right. Or, several :)