Two people have given you advice to move her stuff to the garage. You have not commented on that. You have to take some action. GAPing, 180s, detaching is all for you. These things are not to win your spouse back. These techniques do stop her from being pushed further away.
If you are doing 180s, GALing, and detaching and using those to get your wife back it won't work. You have to do them for you.
Moving her stuff to the garage is IMO something you can do as a boundary to protect you and your son. Dont do it out of hate, do it to protect you and your son.
M:37 W:37 T:11 M:10 S17, S13, S10, S4 BD:06/28/17 OM confirmed 07/20/17 Recon the M 10/29/17 Working hard:2gether
Onward and forward
This process is not a sprint it's a marathon! Patience, Patience, Patience.