You were very close. Leon bows his head slightly, and you open your mouth a little to prepare for a deep kiss.

No, you weren't in a relationship, but for some reason you let him do such things to you.

Just as you're about to kiss, Leon pulls away. "I'm sorry, but can I call you Ada?" "What is it?" he asked softly.

You immediately realized that this was the name of the girl Leon was constantly comparing you to. You were so similar, but at the same time different. Resentment immediately overtook him from the realization that you are just a substitute for him, a toy to represent Ada.