Sorry that you find yourself here. first and foremost you need to read DR or DB. This will give you the basic framework for the things we discuss here.
"Did she see me outside cutting grass afyer working all day?Did she know i had my daughter90 percent of the time while she was out meeting him at the park?He rarely took our daughter to the park!!!I do all the cleaning,laundry and i work."
First thing I can tell you is that these aren't the things that are going to get your H back. Just like how he goes to work to support you. While these are great traits, the don't feed him emotionally/physically/sexually. How much attention and time (before this happened) did you spend with him one on one without the kids around? Did you see movies together, did you hold hands, etc? Was there an effort actually put into the marriage or was there little snarky remarks (There's bound to be some in every marriage).
The OW isn't feeding his ego. She's feeding him what he's been wanting to hear from you.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.
