Well, he kind of has to share paraphrased conversations in his book. A lot of his story is going to be about his interactions with others--joining/being a part of/the ending of *NSYNC, space training in Russia, coming out, etc. Obviously, those are going to include private moments, since it's an autobiography/memoir.

And Lance has nothing to gain by being all "Y'all, I wanted to continue, but everyone else found something better to do!!111!" I think he's going to tell everything as truthfully as he felt it.