He regained his confidence for a while, and then Tim Sylvia refreshed his memory. Now he is MIA after two lackluster performance.

http://www.dailymotion.com/relevance/search/andrei+arlovski/video/x9pg8_andrei-arlovski-vs-viacheslav-datsi_sport

No. He's MIA because UFC won't book him unless he signed their contract which grants him less pay then his current one does.

They've depushed him because they want to be tightwads.