Boku ga Suki da to Ienai WakeYou Can't Say That It's Love; 僕が好きだと言えないワケ

From Fujoshi Bitches: After divorcing his wife, Tooru was all alone. The only one he’d been relying on was his (now ex-)wife’s nephew, Masachika. With his connection to Masachika now lost, Tooru’s loneliness grew until one day...?!