At this age it's all about unrequited love. Kisses are often not returned, hugs are wriggled out of and 'sorry' isn't a familiar word in their vocabulary...it really is all about them, the way people tell you that it will be and you shrug it off thinking, 'that will never be my child!' Eh, well people fail to mention that this is every toddler and yours will be no exception. Just believe me when I say that ;).
