This song sums it up... perfectly!

[galaxyduster]

All this time I was wasting hoping you would come around
I've been giving out chances every time and all you do is let me down
And it's taken me this long baby, but I figured you out
And you think it will be fine again but not this time around

You don't have to call anymore
I won't pick up the phone
This is the last straw
Don't wanna hurt anymore

And you can tell me that you're sorry
But I don't believe you baby, like I did before
You're not sorry

Looking so innocent I might believe you if I didn't know
Could have loved you all my life if you hadn't left me waiting in the cold
And you've got your share of secrets and I'm tired of being last to know
Now you're asking me to listen 'cause it's worked each time before!

But you don't have to call anymore
I won't pick up the phone
This is the last straw
Don't wanna hurt anymore

And you can tell me that you're sorry
But I don't believe you baby, like I did before
You're not sorry, no
You're not sorry

You'd have me crawling for you honey
And it never would have gone away, no
You used to shine so bright
But I watched all of it fade!

So you don't have to call anymore
I won't pick up the phone
This is the last straw
There's nothing left to beg for!

And you can tell me that you're sorry
But I don't believe you baby, like I did before
You're not sorry, no
You're not sorry, no!

"You're Not Sorry"
-- Taylor Swift