I went right back to her? You mean I never lost her to begin with?Good job. So you had some rebound. Do you want a prize?
You're kind of contradicting yourself here with this bit. She broke up with you, you found another girl because "you were able to walk away at a moment's notice" but then you went right back to her. Why would you do that?
A girl doesn't spontaneously become an ex because she cancels one date. It was all a misunderstanding.