Only Time Can Mend a Broken Heart

They say that only time can mend a broken heart. I don't think broken time turners are quite what they meant. The real question is can a broken-hearted witch mend time? Or will Hermione sacrifice the future she knew for the witch she wants. HG/MM. Slash. Time Turner/AU fic. Hermione gets blasted back to Minerva McGonagall's seventh year.