NY Daily News [1] reports that LL's diary had been taken while she was chillin' at The Maritime Hotel. Luckily the diary was return but not unharmed. There were a few pages missing. They report [2]:
The diary was later returned, but not before a "friend" ripped out some choice pages, written within the last 10 days, dealing with Jared Leto, someone believed to be Maroon 5 front man Adam Levine (referred to by his initials) and her family.
While they claim to have a copy of these pages, they are not sharing the dirt since it is a private diary and that would be crossing the line. However, stalking her at clubs, the beach to the hospital is totally acceptable.

Source [3]