As you can see, the erratic behavior begins early in the morning, with what one can assume to be drunken rambling to himself. As this behaviors escalates, you will note, this behavior devolves to become increasingly belligerent as the morning progresses.
At this point, the obsessive nature of the bahvior becomes increasingly evident, as the subject begins to focus their seeming aggression toward a particular point.(An individual whom I can confirm had not even awoken at this point.) You'll also note that the subject appears to leave briefly, presumably to sleep off their drunken stupor. It's possible that sleep deprivation may play a role in this behavior.
As an additional act of obsessive focus, it should be noted that the subject, while in the midst of the messages shown in image 2(shown above.), that they also attempt to badger the second party privately, as well as in a public forum. This continues further as shown in the following two images.