Hi Adam
I think maybe you both seeking help is a good idea. Sounds like separation is a start too. Both of you maybe get lawyers.
divorce always has two sides as I know from mine.
Ppl do things in marrages I have no idea why. In mine we both made mistakes. In my eyes what he did was worse as he wanted me gone.
The point is there is two sides. It sounds to me like the both of you are ready to be apart for awhile.
divorce is one of the biggest stressful things in life. So take care of you.
I hope things go ok or as best as they can.