DM cannot move H. He has to move himself.
By the same token, neither H nor anybody at CD.com can make DM change her feelings/views.
If either one of them feels that they cannot continue in the relationship without the other changing, the relationship is not long for this world. But if they can make a truce on this issue -- something that both can live with, if not like -- and will hold to it like grown-ups, there may be a possibility of time working some sort of magic.
The advantage of true DADT is that it gives both people time -- relief from pressure -- to change on their own.