Is it a bad sign when I want to be home alone at least sometimes?

It really bothers me that I want to be alone one or two days per week all day. I was so envious that my friend’s husband was gone fishing the entire weekend with his brothers and son. She hated it and almost went nuts being alone. But I’m the direct opposite. Being with my s/o twenty four hours a day seven days a week is so annoying for some reason I don’t understand. I feel guilty being this way. Am I abnormal? My ex was a tyrant but at least he was gone a lot working. Nine to five at least. I still miss that. What’s wrong with me?