Is my wife really attracted to me or is she lying?

My wife is 24 and Im 34. We got married three years ago. Shes beautiful and use to model and she says that she is only attracted to shortish, stocky guys that wear glasses. I look like that and Ive seen pics of her exes and they all fit that description also. I just dont get how a beautiful sexy woman like herself would actually prefer someone who looks like me. I could understand if she fell for my personality and didnt judge much on looks but she claims that those qualities are actually her preference. Im just an average looking guy in my eyes so is it true shes actually attracted to my physical appearance?