look.. when you date a girl, that you care about, you will still see hot women. I promise you all the hot women on earth dont' drop off the face of the earth. I am sure she is aware of this as well.
But how disrespeful is it if I am with my GF and I am in the mall and a girl passes us, and I say "god damn she is fine". Now, I might think she is hot, I might even look... but that's a slap in the face to blurt that out in front of my GF.. no respect whatsoever.
Now, reverse.
What she did to you, if even a **** test, is extremely disrepsful and should be let go, ,she isn't GF m aterial ,regardless of how hot she is.