Everybody needs their space every now and then. It's something we sort of knew, but implementing it in a way that feels right for us took a while and is never really finished. It needs some good communication for mutual understanding but it is every bit worth it.
There are things I don't enjoy doing that my partner does, and vice-versa, so we let each other do those things. Sometimes we'll participate in each other's things to show support/make an appearance, at the cost of some discomfort. I'm generally the hermit crab that wants/needs to be alone. Then in common we have things we enjoy doing together. It's actually pretty simple once you let things naturally unfold and have trust that just because you're not with each other 100% of the time, doesn't mean you don't love one another.
I felt like I had a huge need for alone time with my ex. In reality it was me who had fallen out of love.
With that said it’s obviously important being able to take time to be alone. But do not forget that shared time is equally important.
We play it by ear most times, we currently live with our parents still, I'm in college and she's a preschool teacher with the rest of her family (bit of explaining needed but eh, not bothering right now), so half our days are already taken, we have a day we almost guaranteed to see each other which is when we go to taekwondoe.
When we go to the others house, we kinda both have discomforts with our homes, so we try to balance out the times we spend there, and if we aren't feeling either place, my truck is where we go to chill out. Basically, I'm saying that if we find time, we hang out in whatever way we feel comfortable.
There are times she needs a break from all social interaction, and I'm willing to give her space and usually hang with her fam, which im good friends with anyway.
We have talked a good bit about this, and if we have problems, we try to find some kind of compromising, or at least an understanding. mindset is something I find dictates a lot of my mood. If I'm not in a state of understanding, I feel pissed. If I know how she feels, I find myself much more at ease, even if I don't like the situation.
Tldr, if we ain't feeling it and tell the other, we fine with giving space, and usually just preoccupy ourselves.