Hello Fjoyner and welcome to MovieTreatments.com!
I don't know how familiar you are with the site but I am something of the resident guru here
and I like to offer my critique of the treatments people submit in the hopes it will help them realize their dreams of becoming working writers in the industry.
Anyway, your submission looks great. Unfortunately I have not seen the original Diary of a Mad Black Woman and don't feel like I could properly critique it unless I do.
So I will-
I'm going to go rent it later on today and hopefully get to it in the next couple of days, read your treatment, and get back to you. Thanks for giving me an excuse to relax with a good movie, seems I hardly ever get the chance any more.