Did you use anything for yeast nutrients ? Because just honey, water and yeast would be a "show" mead, and the lack of nutrient can make for a very long, slow ferment. Whereas, with that mix, its only an orange, raisins and a few spices away from a JAO type batch.....
7g of yeast in 2 liters with an OG of 1.008 probably would have finished fermenting in about....really quick, if it was still going after 2 months there has to be more honey, even bread yeast I'd think could take this batch dry in no time