You may have had time to think, but not properly. No, no one would be able to handle that, not even the Doctor. You aren't alone, Eleven.
That is why you came seeking me, why you sought me out. You were lonley and scared, and the only person you could possibly think of to come to was yourself. The only creature who would not die, and would not leave you behind.
Brilliant, yes, indeed, desperate, and dangerous.
You poor thing, you. So much pain, so much lonliness. You don't deserve that, we never did.
[The Doctor reaches out to wrap his hands around Eleven's head again as he pulls him closer]
Pay attention to me, Eleven. You. Are. Not. Alone. We're not alone. I'm here, and I'm not going anywhere.
Rose did love us, and we loved her very much. We didn't give her a choice when we left her with the copy. He would have destroyed the world, that was why he gave him away. Because she made us a different person, and we knew she could do it again.
You are not alone, never. Even though they all ganged up on you, you will never truly be alone. No, everyone we've helped remembers us. Martha, Jack, Sarah... Luke. All of them. They love us, and they always will. You cannot lose faith in yourself, Eleven.
Trust me. I told I could help, and I can. Let me help you. Let me be here for you.