I know they may not mention the flowers, but you gotta trust that they have impact... your wife is angry, saying thank you or acknowledging any good thing you do is NOT easy for her right now. No matter how much you impress her she's gonna ignore it.
If you want to see this sort of thing in action just rent the film Fireproof. It's a christian film, but you can ignore that part if you aren't christian... its still worth watching.. the acting aint' that great, but as a d-busting instructional tool its A+ stuff. Do NOT show it to your wife.
As your wife talks on and on and can't show a bruise or anything they will start to doubt her stories...
If it woudln' backfire on you, you could always have flowers sent to her workplace for her.. women love being persued publically like that... its flattering to them.
But she will likley be angry right now over it, so save that until you think it will hit home.
Don't worry much about what people at her work have to say... most of them just mind their own business anyhow...
It sounds like people are already starting to doubt her.
