Analysis of Let Back In

I feel trapped in a world of hurt
Who knows maybe I'm as dumb as dirt
But I do know at one time I truly loved you
And now I feel like I'm Ms. Who
We had such beautiful memories
I always let you back in although you always left me in tears
Now your turnin your back on me
I would do anything for you can't you see
You've always meant the world to me
You were my best friend although you always had the key
You always knew what to say and do
for me to take you back in
Well this time you've gone to far
You've shattered my dreams along with my heart
No more tears for you will fall
No more friendly phone calls
My hearts now closed to you, forget what I felt
If she leaves you don't ask me for help
You've gone to far this time
There is no more of me, lettin you back in.