I came in here to tell you to end it until reading your post...her issues aren't that bad...if you love her just learn to ignore her...she'll grow out of it eventually. ..
Maybe suggests hobbies she can do in her free time so she won't miss you as much?
And when you're multi-tasking explain to her in advance to avoid offending her...
I'm speaking from experience she sounds like me a few years ago...honestly the things you mentioned still bother me but I've just learned how to handle it better lol
Relationships aren't perfect and your issues don't seem to be serious...