180 when spouse is involved

So does the 180 work when your spouse is involved with another man or woman? Seems like it would be more beneficial if they didn't have an AP when you separate. Reason I ask is that I'm thinking about asking my STBXW over to help me put together a toy for our son. It's like part of me thinks showing spending some time with her and showing her I'm in control of my life and have my stuff together would help. Also, maybe it would piss the OM off that she is actually spending time with me. I've been doing the 180 for 3 weeks now that we've been separated but doesn't seem to have any effect. I will need things to be smooth between us when deal with custody one day anyways. Any ideas guys or am I playing with fire?

Put the internet to work for you. via Personal Recipe 2629979