Regrets and Sorrows

Nana never regretted any decisions she ever made, no matter good or bad as long as it was for her sons, but that one incident that caused her to lose both of her son's trust, not only that but even lose the life of one of them, made her think 'I regret it so much'. Nana-bashing SkyArcobaleno!Tsuna, Twin!fic, Strong!Tsuna. fake character death. Sucks at making summary. Rated T