I have seen and heard about many people who just get offended online, well I'm here to stop that!  :)
Ok lets get to the point,

if someone starts insulting you, there is two good ways to handle this,
one, ignore him,
two, say nice things back,

he/she will feel bad that you still are nice to them!
  Ok, now for the perp (Yea :P),

you don't want to be mean to people!  How is that helping you get better, or more famous?
  Just relax and have fun with your peepz!  Ok so,

to both the, perp and the victim. (Lol)

Ok well,  just enjoy being on with friends!  Why be rude?  Want to have fun?  That comes with being nice!
  You can't have fun if you are always insulting people, and they don't like you!  Then you got no friends!

  So what I'm trying to say and do here is, be nice, have fun, make friends!  Don't be mean!  So, that's what I got so far!  I hope this helps!  Next time on chat, I hope to see nice people!  XD thank you!

Btw!  Picture is from Advisor's Graphic Shop!  (He is really good!)