Why does Victoria Beckham never smile?

Victoria Beckham has revealed in an interview in May of this year why she never smiles saying “Yes, I created this mask but it is very different. I don’t feel you must to scream about how well I is I know I’m a happy person. So I do not mind when people comment about how I look unhappy all the time. But you know, sometimes I think the same thing when I look at pictures.” which sounds to me as if she is trying to say that she doesn't feel like she needs to smile to show shes happy.

Maybe she is sad inside and does not want to be fake and smile.

Probably because of botox.