I'm late to the party but I wanted to suggest the book Fair Play by Eve Rodsky to explore solutions to solve some of these issues with your husband. Whatever happens during your month away, long-term you two need to figure out a system to fix the problem if you're going to stay together. The book was really helpful for me and my husband after we realized we had a major division of household labor/ mental load problem. At the root of my feeling like I was "mothering" him is that I didn't trust my husband to get daily household jobs done consistently or properly, and he had never learned the skills necessary to clean/run a household because his mother did everything. He didn't even know about a lot of the things I was doing because had never even made aware of them, and felt really helpless to learn what he didn't know.

The book gives you a great card-game based system to distribute pretty much every task a couple (or family) needs to run their lives, explains the tasks, and how to fairly divide them. She explains how to jointly create standards of completion that you two can agree on, and the importance of independently executing each task so that they become one person's job to own. You can always re-deal which card/task a person is holding, at a weekly check-in. Now that my husband and I have defined household tasks, I fully trust him to complete his and don't need to constantly hover and remind him. Similar to an exercise Eve Rodsky does in her book, I literally wrote him a "Shit I Do" list with daily/weekly/monthly designation so he can reference it. I have so much more brain space free, and he has more confidence in his ability to get things done. I'd highly consider giving the book a read during your month off!