Spoiler!!!

Nice question..

Well, HH, or Stephen [Nathan], not sure, told us that the relationship between B&B will change after this episode. Maybe they see that Sweets is right, and that causes tension.
Maybe they just deny it, and that will be funny..

But, these are all assumptions, speculations, and as one always said; We don't speculate!

Let's wait..

With all the info out there about the 100th...I dare to say that I have an idea about what is going to happen: After leaving Sweet's office... we know that they are going to talk about it, well, I think Booth will accep that he's actually in pag-ibig with her... Brennan is going to freak out and tell him some non-sence excuse... so basicly she's going to deny everything... And maybe that's the reason Booth is starting to petsa someone else...
That's my thought....

hmm that is a good question. i do remembere pagbaba a spoiler saying that after B/B tell Sweets about the first time they work together he says something like "my book is crap." something like that. because there is a key piece about B/B in their first meeting...