Medical exam

I went for my medical exam this morning,the doctor told me that I need more exercise and less fat food.Indeed,I think I need go on a diet.because more fat food and less exercise is harmful for my liver.I think may be I should even give up drink.
When I told this to my wife, she said she can't believe,I told her,why does she don't believe,why I'm joking it with she.Actually,I feel blue.Hm....... what's up with she.,I mean I need some warmly regards,but not some words like "I can't believe,you lie me!"
Oh,it's enough,let me forget about it,In reality,I know she love me,may be I just don't like her attitude.