It's really kind of sad how they turned him from the somewhat classy and put-together young man he was in Season 2 into this weird weepy man-child who somehow managed to just keep regressing with each consecutive season and sometimes consecutive episode.
It's like, are you trying to make him insufferable?
The weird part is, Murphy is still close with Darren, so it wasn't like he was torpedoing his character on purpose like he was blatantly doing for some petty reason with Dianna Agron and Jenna Ushkowitz.
But then they turned Finn into a massively hypocritical jackass in the second half of Season 2, turned Brittany from just ditsy to too dumb to live, turned Sam from an awkward dorky guy into Brittany with a penis, and turned Shannon "inside I'm just a girl" Beiste into a man, so it seemed the longer any character was on the show, the more they were assassinated.