You are still trying to find some solace in hoping to convince her to change her mind. I will repeat this because you NEED to come to terms with this. You have said in posts previously that you have - but clearly you havent - so I will say it again.
You NEED I repeat NEED…. To come to terms with the fact that NOTHING you do or think is going to fix this situation and your Wife wants out.
The mistake you (and a lot of us made) is building our life around our W.
This is very co-dependent. Every body needs to accept FULL responsibility for their own life and happiness.
Your W leaving you will obviously hurt, but your Life and your happiness is up to you NOT her.
Why should she give you another chance? - You are trying to control her and convince her she is making the wrong decision. In her world.. She is making the RIGHT decision.. So by you holding onto this hope that she will just give you "one more chance" is a complete waste of time.
This is a life changing event and you need to treat it as such. You need to MAN up and be strong. Cry if you need to - let it all out.. But at the end of the day - NO amount of moaning, crying, begging is either positive or going to get your W back. She will not be attracted to you begging etc..
You need to become a new man. This is such hard work and is very painful - but you need to go through the pain so you can heal and move on. Stop trying to fix things quickly - this is going to take potentially years of effort before she would even consider having you as a partner again.
One final thing - stop looking for clues in every single move she makes, or text message she sends… It will drive you crazy.