Search Results: buying a girl drinks

This doesn't apply to all women, but we can all agree it applies to most. Girls that expect free drinks at a bar, or a free entrance. Girls that expect to sit down and wait guys to approach. Girls that aren't polite if you're less attractive than them... you get what I'm saying.

Do you think this is because guys buy them free drinks, approach them all the time, put them on a pedestal while diminishing themselves trying to get her attention...
Is it guys' fault that most women are full of themselves and act entitled to a better treatment, because men give them better treatment?

So me and this girl that had dated had split up about 3 years ago, we were really close and the way we split up... People knew that if we encountered each other, things would get vicious.
We go to the same school so
I told her I didn't want things to be uncomfortable between us
She replied "I'm not uncomfortable, but I'm glad you are."
One example of how things were:
After the split, holidays were coming up, I bought her some gifts. She said "Return them" Just like that.
Little while on I see her in the cafeteria on campus, virtually empty, I put about 500$ on the table in front of her and I said "Here is the money I spent on the gifts." and I walk out.
Few weeks later I see her, we talk and she says that she threw the money out.
I stormed out and punched the wall and ended up fracturing my hand.
Come next week i'm sitting in the cafeteria with a friend. I have a cast on my hand.
I noticed her walk in and go to the cafe part to purchase food
I was like "Look its her!"
My friend was like "No its not you're paranoid."
I turn his head towards the direction I was looking
It was her, buying a sandwich and a drink
She pulls out a huge wad of cash
And the only thing i'm thinking is
This b*tch
She sees me
And looks at my cast
She whips her hair and has the biggest grin on her face
She locks eyes with me the entire time as she walks out
After she left, my friend was like
"That was amazing."
Don't worry this is just one event of many
Basically if I'd see her and she see's me
She would go out of her way to make sure I get a good look at her.
FF...
So I did this film project, I did the filming, and music
One of my bestfriends was the creator of the project
He told me that she had recently contacted him and told him
that she wanted to be a part of the project.
He said that he highly doubted he would cast her.
Months later
Me and him get into an argument
And I end up quitting the project.
Then very soon.
He casts her...
And they become friends...
Should I react to this?