She's dating a musician now
Me, I hated the Penny/Leonard relationship because of how it made Leonard unlikeable. I like him better this season than I did the entire third season. Maybe it was because they were dating irl, but they had 0 chemistry on the show.
I don't know if I agree, BUT, I'm glad they did the relationship because it got them past the whole Will They/Won't They thing.
Now, it's they DID, and we're moving on.