On Bates 36933, calendar entry 112, 5/15/14 at 1:00 a.m. someone named "me" is "assisting Wayne" with sex. That would seem to be Mark. On Bates 36933 there is an entry for 6:30 a.m. about the ABIHM boards. According to this document (
http://www.abihm.org/pdf/ABIHM-and-ABoIM-FAQs.pdf) the last paragraph (page 2) states that there was a ABIHM exam in May of 2014. According to Teresa's website, she was certified with ABIHM (Academy of Integrative Health and Medicine).
So it looks like on 5/15/14 Teresa had a board exam for either certification or maintenance of her credentials/not likely to be up at 1:00 a.m. having sex before an early morning exam, particularly if it was out of town (still confirming where it was).
In my mind, there was only one person having sex with Wayne or fantasizing about having sex with Wayne - and it was his 30 year BFF Mark who kept copious notes about sex-capades. So that the BFF could access/download in his role of "computer" guru.