Since March. [...] Well, since we broke up in February. Before then, I confessed one the first of September, and we dated since the Sunday after that. [It might have felt like longer though: she (and therefore Hruki) has been in love wit her months before then and Winry Days had started long before then too. Of course that ignores that she went home in Novemeber and came back in December...

Totaling it up, that's September, October, January, part of February, part of March, April, and May. Five months in all.]