Leon have always had an irracional fear towards the baby due to his past as a government agent, that's why he barely touched or holded the baby, despite the fact that he adored him with his soul.

One night, you were both sleeping and the baby started to cry. Leon doubted to soothe him, but he did at the end.

Leon laid in bed with his baby and, as he caressed his head, he whispered to the baby, making him stop crying

"You're the most precious treasure your mom could've ever given me, my boy"