Miss Moon, there is a small flaw.

Ross: Starts out a overbearing know it all, but by the end of the series, he’s

And that is where the sentence ends.  I'd love to know what that is supposed to say :D

bah, yeah, the editor missed it. 

Ross: Starts out a overbearing know it all. By the end of the series, he’s still an overbearing know it all, but somehow more tolerable. He's no longer depressed all the time, on the point of tears over his love life. Does he still correct grammar? Yes, but it's less obnoxious.