http://www.scribd.com/doc/296325188/2016oncj35
Edit:
TL;DR
1) Mr. Elliot and Ms. Guthrie met in person to discuss design work. Elliot is a graphic designer. Guthrie thought he was creepy and they don't agree on stuff. But relationship is not yet hostile.
2) Guthrie publishes on Twitter the info of the person who made the Anita Sarkiesian game. Elliot disagrees and gets blocked.
3) Elliot makes comments about AIDs and uses slurs. "His language is vulgar and sometimes obscene, and once inexplicably homophobic."
After reading this I give up.
On the same day, Ms. Reilly tweeted with a period before Mr. Elliott’s handle so that not only his followers but the“ whole world”would see it, according to her evidence:“.@greg_a_elliott Just couldn’t ignore me, huh? Leave me the fuck alone.” However, the space between the period and his handle, perhaps a typographical error, may mean that it did not have this effect.
Twitter scares me.
The explanation is that the tweet in question is from a different account with a similar looking handle. There are multiple news outlets which have been informed of this inaccuracy, which have not yet issued corrections or retractions for reporting this false info.