I’m a speech pathologist.
I know a bit about people who only hear parts of what you say.
A few things are likely happening with the spouse who doesn’t "hear" everything.
1. He likely has established a listening "pattern" in his mind for you. What I mean is that when two people have a very high frequency of interaction with one another, they begin to believe they sort of already know what the other one is going to say, how they will say it, and they do not completely listen to what the other one says. You will see this with young teen females, as one example - they will talk and finish each other’s sentences, or sometimes not even finish sentences at all and just laugh knowingly. You may do this with close friends or siblings. This occurs because of closeness, but can be the source of problems with people because the very closeness that makes for "unspoken" or "quick" communication can lead to really poor communication in situations where the message is not routine or is misread.
2. When it comes to complex sentences like you’re talking about, where you have a command and then you offer more information or further instructions, your idea of breaking it down isn’t bad. But it might help to break it down a little differently. Offer the "what I already did" information first - not last - because it sounds like that’s where his head goes. I would phrase it like this "I did about SIX THINGS ALREADY, including x, y, z, and more. I am not looking for more solutions, though."
Then, let him go on, because he will offer solutions. Maybe one will be good, yay! But you have to wait. I will offer tips on that, too.
But when he’s done "solving" this for you, then you say, "Thanks. I need to ask TWO (or however many) things of you." Then state them. "First turn on computer, second look up x, y, z."
Stating the NUMBER of things you’re about to need will change the "listen to the end of my sentence" part of their listening approach. It’s a game changer. Use it. Use it at work, with kids, with anyone. Game changer in meetings, too.
3. Use your silence in conversations to your advantage. This is more powerful to get him to listen than you can possibly comprehend. It will also get the listener to talk, and open up, and CONCEDE more than you can imagine.
Yes, silence.
When we have a conversation, there’s a natural pace of back and forth. With extremely short (millisecond) pauses in between your turn and mine.
But you hold the power to alter those pauses, and the fact is that those pauses can be extremely useful. Let’s say you are talking about a difficult topic and you want the other person to admit more, or open up more. Ordinarily you would talk back and forth and you would verbally ask questions, request more information, to draw them out.
Instead of doing that, ask your question, and wait. Just silently let them respond. When they finish answering, nod your head in understanding. You might make a sound like "hmmmm". That’s it. Look at them with an accepting expression or neutral expression, but silence, nothing verbal.
Now this will be the most uncomfortable 10 to 15 seconds of your life, and you are going to want to say something. Don’t. Your job is to wait it out, nod, look like you are thinking it over.
They WILL be trying to figure out why you aren’t talking. Don’t worry about that. Because they are about to fill that silence for you, and almost always they fill it with gold.
Almost always they offer more information, or a concession, or they offer to help you, or a more generous offer than before. They will back off of a previous statement that was harsh or mean. They will give details of what they were holding back, or will apologize. They will offer a solution to make something right that they resisted before.
Almost always - not always. Sometimes they say "what?" In which case you say, "just listening" and you sit a bit longer - and usually the gold comes then.
Yes, you do occasionally get the resistant one. But when you make this a practice, you win far more often than you lose. It’s very subtle, because people just don’t like that "silence", and some people break it after only 2-3 seconds, it’s amazing.
I got a $14,000 difference in salary offer using this. Just waited them out on the "best offer". Took about two rounds of "hmmm".
The trick is not talking yourself. Takes some practice.