Breaking Up is Hard To Do By Sarah Stegall Copyright © 2007 by Sarah Stegall Chuck Mondays on NBC at 9/8 “Chuck vs. The Breakup” Written by Scott Rosenbaum Directed by Robert Duncan McNeill Tragedy can make you cry, but it takes comedy to really break your heart. Such is the case on last night’s episode of Chuck, near the very end of a roller coaster ride of an episode. Chuck just keeps getting better and better this year, not just because of the stories but because of the overall character development we’re seeing. I am gratified and frankly surprised to see so…