My rambling on Girl in the Fire place...
Really the reason they where after her was because of the name of the ship... Guess the doctor was right they where a little thick going to all the immense difficulty of opening time windows to get one brain when they didn't know if it was compatible or not.
I just don't like this episode, too many holes, and really the Doctor couldn't be in love with her after knowing her for all of a few hours even if he was in her head and her in his, maybe close to love, or something that approximates the starting of, but to actually fall in love with someone takes a longer amount of time. Sure you can have the starting of it, but true love takes longer cause when you think your in love with someone when you first meet someone often it goes away after a while and fades. True love is when it doesn't go away and if anything gets stronger. The honeymoon period when you first meet someone and all that.
Anyway will stop rambling now.