Or, you could just accept that at this time this is simply the way she chooses to run her life.
Like putting no expectations on the relationship, having a pleasant time when you do connect, enjoying the time for what it’s worth, but not placing any expectations for the future on it.
If it occasionally works out mutually for the 2 of you to meet in the immediate time, when it’s not putting you out if she doesn’t show, it could be nice to share a coffee or piece of cake.
If you pin your hopes on that she will accommodate your needs, you’ll continue to be disappointed.
Friendships have a multitude of life spans, intimacy and interests. Each on stands alone, not to be compared with another friendship.