I don't get what's people's problem with the show nowadays, especially after this last episode. They're all ripping on the additions of Amy, Bernadette and Priya and that it sucks now that they're growing up and getting girlfriends.
The show is called "The big BANG Theory" for a reason. Isn't the whole point of the show supposed to be 4 nerds adapting to everyday life thanks to Penny moving in? That's exactly what's happening. Why aren't nerds allowed to have girlfriends?
And relationships have been part of this show since DAY ONE.
And they still act like nerds. Take a look at the past few episodes.