You describe my ex to a tee. I used to always say he was grumpy. I would invite friends round a lot, because he would be happy and cheerful in front of other people, he saved the negativity for us alone.
My dc started to feel his contempt, as they got older.
Everything he did or said, I just couldn't put my finger on it. We didn't talk, he would just sit with a blank face while I poured my heart out. He "didn't know what to say."
We started arguing morw and more towards the end, because I wouldn't stand for the way he treated the dc. I wouldn't accept such contempt towards my children from anyone else, so why was he allowed to treat them poorly?
Then one day, he was rude to my child for bo good reason, again, and I stepped in. Again. He decided that his "grumpy" displays and contemptuous attitude wasn't keeping me in line anymore, so he decided to attack me. He grabbed me by the throat and hit me across the face, threatening to do it again as he walked away from me, frozen in place.
I rang the police and ended the marriage then and there.
It was a painful realisation to slowly recognise that I'd been abused for years, our entire relationship. I was I was boiled frog and didn't notice, until it was directed at my children. He didn't like me standing up to him - "undermining his parental authority."
His abusive behaviour escalated over time, and I just didn't notice. He would push me over and hurt me, but it was "accidental". He stopped me from being able to work, with sudden overtime meaning he was never home in time for me to leave for my own shifts. He constantly overspent us into the red, and blamed me for it. I was a failure in every respect, according to him. It made me small, meek, and tired. All I focused on was making him happy, but he never was, because what made him happiest was seeing me miserable.
Sure, I was probably not the easiest person to live with, I didn't want to spend time with him, I didn't even like his company. But I was trained to depend on him all the same, and I was scared to leave him. When he hit me, though, I knew I had only two choices - leave, or stay with someone who could potentially kill me.