We somehow doubt that Tom Cruise - a man not entirely famed for his lack of self-esteem - is wracked with self-doubt and worry over the possible reasons why Katie Holmes dumped his ego him.
But should he, for any reason, wonder such a thing, he should take a look at Emily Hartridge's latest video, above: 10 Reasons Why... She Dumped You.
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Emily's 10 Reasons series has been nominated as blog of the year ('sex and relationships' category, natch) by Cosmopolitan magazine - and if you want to vote for her, you can do so here.
In the meantime, check out more of her videos below, subscribe to her YouTube channel, join her Facebook group or follow her on Twitter at @emilyhartridge.