"However, I'm afraid her response will simply be, "I don't care.""
So what? She hasn't cared in a LONG time because you kept breaking that trust.
The time to tell her what I advised is NOW.
You putting it off is just you acting the same way you had in the past. Sweeping it under the rug because YOU are afraid and not caring about your W's feelings AT ALL.
Look how that turned out for you.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.