The bomb like device future Doctor gave to past Doctor disrupted the magnetic beam from the salvage ship - saving the Tardis. Also, I'm pretty sure the Doctor retained his memory of the event based on his, "do you feel safe?" questions.
I think the whole thing about the Doctor also trying to get Clara to like the Tardis is because she has been completely underwhelmed, unimpressed, and even mean to it right from the get-go. Chalking it up to the same way a boy would react when the new girlfriend hates his fancy vintage sports car that he spent so much time refurbishing and putting love/care into.
The only glaring thing here that really bothered me: he said the Tardis can't self destruct. It can, and it has - back in the episode where he blew it up to create a new sun. Also the Text of the book should not have been readable, you've got a really good lead there.
I seriously hope it's not River's daughter. But I'm beginning to wonder about the granddaughter comment he made in an earlier episode, plus the mention of the Time War here... Maybe hints that we will learn more about the Time War and his original family?
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