What's your opinion of her dh's behaviour?
I'll make this a last post as its not about debate, it's about the OP.
I know from experience that people don't always immediately react as we'd like to. I've had some pretty strange immediate reactions to extreme situations in my past too. So as much as I'd hope he'd have had a great first reaction for the sake of the OP, I know it's not that simple as humans aren't predictable at times like this.
Since that initial reaction, they've talked and he's given the right reactions. That's the important but for me, although with concerns about the medium and long term.
Even in the heat of an initial poor reaction, the ring question I personally didn't see as him passing judgement on the rape or a right to say no, I saw it as insecurity because the OP didn't respect the boundaries.
Of course the first reaction logically ought to have been concern for the OP rather than for their marriage, but having had some dreadful times ourselves in the past, I don't expect people to react logically initially because I know I haven't. Because of my experiences, I think it possible that he blocked out the rape and focused on her intentions when she initially went out as to the state of their marriage.
When I was raped I blocked it out and didn't react to it. I didn't even classify it as rape and minimised it. It really doesn't surprise me that he didn't react to the rape of his wife. It's an awful thing to come to terms with whether youre the victim, or whether it's someone you love.
When I confided in my DH that I'd been raped years before we'd got together, he went silent, didn't give me the reaction I'd have liked and I didn't feel supported and filled in my own blanks. The initial silence wasn't because of anything other than needing time to process. I don't begrudge him that or judge him on it. If something that bad had happened to him, I'd like to think I'd react in the best way but I couldn't guarantee it. I wish I could, but knowing he's a good man and didn't get it right doesn't give me hope that I'd be any better.
In short, I know I'm projecting my experiences and the subsequent reactions of DH and I on this situation too. That's all I can do, extrapolate from what I know.
I also wholeheartedly agree with the OP's attitude.
She does not believe she deserved to be raped. Quite rightly so, nobody deserves that.
She also is more than aware that she's crossed the boundaries of her marriage and acknowledges that this was foolish and her DH has every right to have an issue with that. She's considering his feelings too which is good for their marriage. At some point they'll both need to work through that to strengthen their relationship. Dealing with a rape is hard enough but there are added complications with the separate issue of trust.
OP I think you're fantasic. You're doing all the right things and I'm glad you're forgiving of your DH's initial shit reaction. What counts is how things go from here on in. All the best 