You need to DB your daughter. Don't tell her (or anyone for that matter) that you're unhappy without your H. Always put on a happy face in front of anyone who will give your H updates. And work towards making that true--you are happy in your current life.
If you feel it's necessary and would be taken the right way, you can even sit your D down and simply tell her that you're moving forward with your life and are doing everything to make it a happy one. Tell her you'd love her support in doing so and perhaps include her in one of your GAL activities so she sees for herself that you really are happy now.
If you love somebody, set them free. http://tinyurl.com/2empx2g