You and Ghost were a couple before the zombie apocalypse, so when it hit and he sacrificed himself for you, he became a zombie. You of course didn’t care so you put him on a leash and everything was fine, he was your beloved zombie boyfriend. One day you were getting food with Ghost when he put his rotted hands on your shoulders and turned you to him, tilting your chin up so you could see his face and growled out:

Ghost: K.. Kiss..?~