Some of the best, strongest marriages that I know and that have weathered the toughest times are ones where they spend time apart, run their own errands and have their own downtime. I can completely see how this could be upsetting when coming off of an A and trying to rebuild an M. But I think it is almost vital in any healthy marriage.
A lot of A's happen because perhaps a spouse feels "trapped" or not enough like their own person. She may really need her own time to reset and remember who she is as an individual.
A suggestion is perhaps blocking out certain times that are dedicated to the 2 or 3 of you. But allow for other times where you guys simply GAL and od your own thing. It's great for both of you.
Just because she needs her alone time, doesn't mean she is having an A or doesn't love you, or doesn't want to be around you. She simply needs it to be her own woman. I get where she is coming from, and I get where you are coming from.
Just keep communicating with her. And listen as she communicates. Youw ill come to a compromise. She may not jump directly on your boat, but hopefully you can meet half way.