A Little More Selfish (Itafushi Fanfic)

"Megumi never once regretted saving Yuji Itadori's life.

Never regretted saving the infuriatingly positive, irritatingly wholesome pink-haired boy.
The boy who died but awakened something inside Megumi for the first time.

Sparing his life had been a selfish, self-serving decision, but now that Yuji is back and fighting to live, Megumi wonders whether maybe, just maybe it's okay to be a little selfish."

Or:

Itadori is back from the dead but Megumi's nightmares persevere, guilt and worry
haunting him. What's more, Yuji's unexpected return has reopened a book of unresolved and suppressed feelings that Megumi never dared to admit but now has no option but to face. Despite the cruel reminder that Itadori's days are numbered, life has given Megumi another chance to maybe, maybe take the risk and be a little more selfish.