Here's my take: I think Jodi knows she's going to be convicted. I think she's always known she was going to be convicted, and her lawyers have always known it as well. As Detective Flores said, this is some of the best evidence ever, and there's no way around that.
Jodi is going through the motions of telling these tales just to pay lip service to the process and to give her a venue for talking about Travis. There are several points she wants to make very clear, and it matters not how it affects the outcome of this trial, as long as she gets to hold forth. Those points are: 1. That Travis was really into her, and that makes her special -- and all the Jodi haters, like Sky, be damned, 2. That she was so appealing that she could get a nice, chaste Mormon man to break his vows, and 3. Travis f-ed up by rejecting her and calling her out on being a lying sociopath, and for that he will pay, not only with his life, but with his reputation and memory.
This whole trial for Jodi is a huge F you to Travis, kind of a warning or lesson about why Jodi should never be crossed.