Hi Bonny,
I am a relatively new member and I haven't posted much, but since the overall yes/no topic and how to 'translate it' for each occasion is something that has troubled me as well, I thought it might be helpful to contribute my experience on the matter.
First of all, allow me to congratulate you for actually considering the karmic aspect and consequences of your questions. I believe as well that it is the ethically right thing to do and that boundaries should always be set, as to not actively interfere with other peoples' lives and free will. However, in this case, I believe that as long as you simply need to have a picture of the situation, without intending to act on the information in any way, there shouldn't be any problem (but that's just my personal opinion, you should always go with what your own instinct tells you).
Now, regarding the question itself.
Throughout my readings, I have found the simple yes/no one-card questions to be not only hard to decipher, but also largely unreliable.
As the page of ghosts mentioned, tarot cards 'chat' about a topic, they are multi-faceted and more often than not, a clarification, or the accompanying cards of a full spread are required, in order to make some sense of the story they relay.
Therefore, I do not think that the 'problem' lies with the divorce theme itself, but more with the lack of a complete and cohesive spread, a foundatiopn for the answer that you seek.
In my case, a basic spread (and one that the reader is familiar and comfortable with interpretating), such as the Celtic Cross for example, following a specific question, have resulted to some very comprehensive and helpful readings.
According to my experience, as long as you are specific about the subject you ask about, you are clear about it, calm, focused and grounded, the spread and the selected cards result to clear, very eloquent stories that make sense, depending on the subject and its circumstances.
And at times when I have not been resolute, grounded and sure about what I'm asking, the result is a foggy jumble of cards.
I hope my thoughts help with your problem, even though I didn't provide you with a reply strictly concerning your original question.
All best and be blessed!