<human>: Can you give me the gist of the text in a nutshell?

Hey reddit, seeking some sage advice here.  

I have a group of friends consists of me and 3 other guys.  
One of the guys, let's call him Hwang does some peculiar things.  
He always touches some of us molester style  
*He manipulates things around in his favor  
*His mannerisms in arguments always changes the subject in his favor -- he must have his way or he'll throw a fit  
*He privately *disses us to each other and calls me a homo sexual in a serious tone.  
  
So today, another friend in the group wanted to address something with Hwang before the intervention. Let's call   this friend Haon. Haon brought up a personal issue and used me as a reference which is all true. Hwang is   deflecting the issue through manipulation and diss (see intervention topics) and claims he didn't say it.  
Now Hwang is completely fed up with the rest of our group and while we would like to stay friends with him, it is   hard to mend things when he doesn't want to and somewhat his personality. He also virtually walked out of the   group via google hangouts.
<bot>: A group of friends failed an intervention for the way a friend in the group acts, instead resulting in him   being indignant and unresponsive. How do we fix this?