I have read a lot about how their relationship soured over the years. I am sure many of you have seen this video before, but it seems that Mike and Dennis are enjoying each others company at the moment.
I always thought (based on their body language and facial expressions) that it looked more like Dennis was trying to make Mike feel uncomfortable by walking over to him, putting his arm around him and looking at him like he was deeply in love, and that Mike was thinking something along the lines of "Thousands of people are watching, keep smiling Mike... And let's hope this idiot won't do anything stupid"... It's actually quite an amusing scene if you imagine that that's what's happening...
Nah--at the very beginning of the clip, you can see Mike good-naturedly rolling his eyes at Dennis, as if to say, "Here we go again with 'Surfer Girl'," and that prompts Dennis to come over to Mike and get all mushy with him. I think it was a rare moment of fun and camaraderie between them.