OP, I'm sorry, but your DH really isn't a loving husband and father. He sounds like a control freak, and very similar to my abusive F, who everyone thought was wonderful (although they don't say that now). He's been dead for 22 years but it's only in the last few years that I've understood the truth about him.
Everything had to be about what he wanted. He wanted a dog so we had one (never mind that my DM didn't want one) but then she ended up looking after the said dog. He insisted on us going to Saudi Arabia for a year when I was 3 and my siblings were 5 and 1. She was miserable there, understandably.
He was also never wrong in his mind, as a result of which I constantly say 'sorry' even now,
And then years after his death, she found out from my DSis and me that he'd sexually abusing us for years and allowed others to do the same, and we're all suffering from PTSD. (The memories came flooding back when we had DC.)
I've also seen letters he wrote to my DM that reeked of emotional abuse and coercive control, which has enabled me to understand her much better. I always thought when I was younger that he simply loved her so much and couldn't face being without her. He was also paranoid and accused her of cheating (oh the irony).
We all put it down to his Parkinson's Disease and his medication. But I can see now that he was simply a control freak who happened to be ill.
It says a lot about the way he was that my DM only felt free to disagree with his politics (Tory) after he had died. She also followed her dreams and completed her PhD in her 70s.
Please don't end up only freeing yourself after he dies like she did. Because actually, our childhood would have been so much better if my DM had left my F when we were young.
I do agree with PPs that your depression is playing a part in your low mood, but it sounds to me as if it's your marriage that is making you depressed.
I also wanted to give you what the viewpoint of your DC might be. And I'm NOT suggesting that anything so bad is happening to your DC. But please don't let them grow up thinking they have to walk on eggshells and say sorry for everything
And you sound like a wonderful mum. I can identify with you over your feelings about your DC. I love my DDs to bits (11 and 8), who are adopted. I can really end up feeling guilty for not feeling the love (at times), as an adoptive mum, as I fought really hard to have them placed with us. But we're human. 