In The Time of The Butterflies what does Jaimito mean by This is your martyrdom to be alive without them?

When Jaimito says this to Dede, he is talking about how her sisters contributed to the revolution and rebelled against the government while Dede did not help. But Dede was the sister who lived and therefore is the one to take care of the orphaned children who were left behind after their mothers' deaths and the one to tell the true story of the Mirabal sisters. Dede's martyrdom is to live her life without her sisters by her side and in this way she is doing something her sisters never did. Dede is different in this way.