I had used steroids on and off for years before my Mrs found out. I didn't hide it from her for any particular reason, I just didn't mention it before. She found an empty bottle of dbol in my shed and asked me if "this is the reason you are looking so pumped right now?" I told her that yes it was (I didn't want to spend hours explaining that without also fully utilising the anabolic window/eating at least 5g of protein per pound in my bank account etc etc, I would be a fraction of the size) and she just smiled and said "Ok, be careful and make sure you drink a lot of water."
I was expecting a big argument, but after giving it some thought, this is my conclusion:
If a woman finds out you are doing something on the sly, and it doesn't directly benefit her, you are fucked.
If a woman finds out you are doing something on the sly, and it does directly benefit her, you are getting fucked.