I'm pretty sure my wife was happy to have me back and missed me while I was gone after both of my Caminos, a two month Camino in 2016 with my son (leaving her with our daughter and her father) and a three week Camino earlier this year (again leaving her with the same people, as our son was off in college). It is not easy to be a single parent. I am also sure that they both looked like vacations. They were vacations. That they were also pilgrimages doesn't prevent them from being vacations.
That said, unlike the situation you describe in later postings, neither Camino was undertaken without her knowledge and consent.
She knew when she met me that international travel was a passion of mine. I had just come back from a year and a half in Europe and was about to head off to Africa. After I got back from Africa, that passion lay dormant for over twenty years of our relationship. Although we talked about taking trips before we got married and had kids, it never happened. Afterwards, with a family, it seemed too expensive. Our trips were often drives to spend time with friends and relatives rather than the kind of travel that had been my life before I met her. It wasn't until the two of us took a trip to Berlin (staying with a cousin of mine who was charge d'affaires at the Embassy there - still staying with relatives!) for our fifteenth wedding anniversary that the spark of my earlier passion was rekindled.
I had always talked about taking a trip with each of our children when they were sixteen. I figured that was about as late as I could leave it and have them still wanting me around. I guess it was always sort of assumed that it would be just me having this bonding time with them, partially because (at least for the first) someone would need to be home for the rest of the family and partially because she is not as interested in travel as I am. She will regularly take a week or a weekend to spend time with her distant friends, but she travel's to see people not places and anything longer than that she starts being too long for her.
A few years after that trip to Berlin, it was my eldest's turn for his trip and he wanted to walk the Camino with me for his trip. We booked two months for that trip, with some cushioning for unexpected delays on the Camino and/or tourism in Spain afterwards. I can't say she was happy about it. She can't say that she didn't know it was coming and we hadn't talked about it a lot beforehand. I guess the word I would use is "resigned".
As soon as I got back, it was clear to everyone that if I had my druthers this wouldn't be my last Camino. A year or so after that I started talking about looking for cheap flights to Portugal to walk the shorter Camino there. So when I called her from work one day to say that I had found a cheap flight and could I go walk again, she wasn't
completely taken by surprise. And again, while she wasn't happy, she did recognize its importance to me and gave permission to book the flights. But if I hadn't got that permission, I wouldn't have bought the plane tickets. On the other hand, I can't imagine anyone who really loved me not giving that permission.
Coming up, she knows I've got a trip planned for 2020 with my daughter. She knows I want to do a lot more travel after I retire (say, a couple of trips a year). She knows that she is welcome to join my on my travels. I'd love to walk a Camino with her! On the other hand, since at the moment she finds it difficult to contemplate ever taking a trip for more than a couple of weeks, I think we both know that a lot of these trips will be without her.
Both you and her could have it a lot worse. Think of poor Sara Dhooma's husband:
https://www.cbc.ca/player/play/1385033795558