A significant injury like this is hard for everyone to adjust to. You're right, it is a far greater inconvenience for you and you're the one having to deal with the pain.
Take the following with a big grain of salt. I am not a counselor, psychologist or otherwise. I'm just a PT who's done this job for 17 years.
I often see interesting relationship dynamics come out when a partner is injured. Often, the uninjured partner is scared, they feel helpless, there are a lot of unknowns for them too. So while you are the one dealing with the injury, you are also the one who has control in a sense. You're the one that knows how much pain you're in, you're the one that can make decisions about what will work for you, when to take meds etc. He has no control right now and he probably wants to help but doesn't know how. This is often worse when the injured partner is very independent and/or stoic.
So my advice is to give him a lot of verbal feedback about how you are feeling, about what's going on and how he can help. Even with little things, like getting you a glass of water once in a while. If you are trying to figure something out, bring him in on the problem solving, he may not have any good suggestions but it will help him feel more in control. I don't mean that in a bad way, like he is "controlling". I mean it in the way that none of us are comfortable with feeling like we have no control over life, and gaining some of that back makes one feel less helpless.
Finally, know that as the new routine becomes familiar and the basic survival part of his brain realizes that things are going to be alright, it will get better. I know that you are having a very hard time right now, he knows it too and it probably scares him that his independent wife has suddenly been thrown for a loop.
Living life like there's no tomorrow.
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2007 Look Dura Ace
2010 Custom Tonic cross with discs, SRAM
2012 Moots YBB 2 x 10 Shimano XTR
2014 Soma B-Side SS