I find it interesting

I find it very interesting how quickly things, attitudes, relationships, can change.

Once someone has gotten everything they want out of you, it's quite disturbing how you are cast aside.

What is even more interesting is how well my memory works when it comes to these things.  I do not forget how I was treated badly.  And I will not be available for any questions or help because of the way I was treated.

You're on your own.  Good luck with that one!