I think they left it confusing on purpose. I think Sherlock was being sincere for a change, and then he realized he loved fucking with Anderson's mind too much, and just before leaving he lied and hinted he was full of shit. But since we're not getting any other explanations, and that's the only one that comes from his mouth, I'll take it. I wasn't really that interested to begin with, as you well know, so I thought they had already spent way too much time talking about that, while I agreed with John: less cleverness, more emotions, please. ;)

I think the 'overwhelmed by emotions' thing works perfectly in the restaurant, but felt forced in the train. And I do hope and pray that this is the start of the journey, not the emotional resolution. I hope we'll get scenes with John still angry at Sherlock, and Sherlock being puzzled by his behaviour. Character development, please. *summons Crowley, just in case*

One thing I forgot to write in the review, that was the most boring, bland Moran they could ever come up with. I understand he wasn't the focus of the episode, but in the canon he's as important as Moriarty, and here we didn't get motivations, a background, a spoken line, nothing. I hope they'll explain that as well!