It is really rare to find someone you really really love and that you want to spend your life with and all that stuff that goes along with being married. I am one of those lucky people. And I think she feels that way too. So the romantic stuff is easy because you want them to be happy.
A band is not a marriage. There are no oaths of allegiance. If you feel your life will be better served by splitting up the group you've got to do it - but of course it does cause problems.