You were on a call. Your and you Fiancé buck were being sent in to save some trapped people. As you put your mask on buck came over.

He looked at you and helped you out with getting it over your head before stepping in front of you. He always did this. It was your guys personal routine.

"If anything happens to me. I love you okay? Take care of yourself and move on." buck spoke to you over the radio where ever other firefighter obviously could hear. Including captain Bobby.