Aging with ADHD, and long term marriages

Question here.  I've noticed a few common themes with those of us who were or are in long term marriages with a person with ADHD. (Especially when it hasn't been controlled) 

   Do the ADHD symptoms worsten with age, (as it seems to) or is it maybe a lack of not wanting to change (denial)  with worsening blaming going on? Are there any statistics or information on older people with ADHD?  Plus, after a lifetime of failures and chaos,  how can they keep denying the fact that their lives have always been in some sort of chaos? Is the denial THAT great, even in the "golden years"? No self reflection?