What do you mean about "being impure for your husband?" I hope I can help!! I think I know what you mean but I'm not sure. I'll try to brainstorm... :)
Like, think of an analogy for being pure for your husband. Like a girl having her heart fully intact, or a beautiful and full flower. You know?
Hmmm... Yea, I know what you mean :) I was just confused by "impure." I think I know what you mean now though... How about..-A sun's brightness obscured by clouds-Color or a mural wraithed by shadow-A blossom chilled by frost-A summer without a sping? (Something with the seasons)I'll try to think of more. I really like your rose without petals one. :) Flowers are a good analogy I think.
An empty treasure box, not to say that there is no treasure left in her, but much of her treasure has been given to other people, not saved to give completely to her husband.
I love Quinny's idea. I also saw this picture of a heart broken, torn, bandaided, and patched up. I'll ponder it if I can think of anything else.