But it goes to show you just how addictive nicotine really is.
Despite dealing with her husband's illness, Catherine was still seen smoking. Ever since Michael's won his battle with the disease though, Catherine is desperately trying to quit smoking by using electronic cigarettes.
She's been seen using the e-cigs while out dining in France.
She's learned that even though Michael has beat cancer, the deadly disease can always come back so for both of them to be smoke-free is one of the best things they can do for their bodies.
We're rooting for you, Catherine. Keep it up for the sake of your husband, your children, and for yourself.
[Image via WENN.]