Jeff Kinney 
Dyddiadur Dripsyn: Y Gwsberan [PDF ebook] 

A Valentine“s Day dance at Greg“s middle school has turned Greg“s world upside down. As Greg scrambles to find a date, he“s worried he“ll be left out in the cold on the big night. Then an unexpected twist gives Greg a partner for the dance and leaves Rowley the odd man out. But a lot can happen in one night, and in the end you never know who“s going to be lucky in love…