I liked this episode but it wasn't as strong as some of the recent ones.
The best part was getting a real look into Sheldon's childhood and understanding why he freaks out so much when people fight. That insight felt genuine and added something new to him.
A lot of the way the Leonard-Penny breakup drama played out was cute and funny, especially how it affected the whole group. Sheldon trying to mediate with his ridiculous agreement was classic.
7/10: It's still entertaining and has heart, but it doesn't hit the highest marks.