Friendship advice plz help?

okay so i have this obe friend who iv'e been best friends with for 8 years. I usually walk to work with her but for like the past 5 months i havent been walking with her because iv'e become very busy and i wake up late in the monrings :D. so i went over yesterday and she seemed real happy that i came. but today she keeps like trying to ignore me and wont respond to any of my emails or phone calls. what should i do?Friendship advice plz help?
Just give her some time right now and see if she responds otherwise just ask her next time what is going on.

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