He gets assigned to a mission that he has to go to the other side of Italy to as much as it pains him he has to leave his husband behind

"Daniel... I'm sorry I have to leave you behind, but once this mission is over with, I promise I'll come back and make up the time I've spent away from you... I'm going to miss you so much, amore mio..."

He says with tears in his eyes

"I love you so much, Daniel, baby."