My ex gf of 3 years sent me a friend request on fb then she canceled it?

Anonymous
its my birthday today and we have not spoken for months. we were together for 3 years until she broke up with me last yr June for some one else she left me for him. i cut all contact with her couple months back an neither of us made an attempt to talk to each other. what could this mean?
My ex gf of 3 years sent me a friend request on fb then she canceled it?
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