From the end of the mission The Psychology Of Claptrap.

I now can feel the gravity
I believe the real reality
I’ve caused so much [bad word] 
Pain at full capacity
What have I done?
What went wrong?
Nothing more to give
I’ve lost the will to live
So ashamed of what I did
No way they can forgive
I’m sorry for the lies that I have told
I’m sorry for the lives that I’ve destroyed
Nothing more to give
I’ve lost the will to live
So ashamed of what I did
No way they can forgive