Gwaelin from the original Dragon Warrior.

You rescue her. She says "Do you love me?" You say "Yes." She says "I love you too."
You carry Gwaelin's love around, as it is necessary to keep. You slay the Dragonlord and leave for the next adventure. Gwaelin says "May I join you?" you say "Yes."

No regrets, no guessing games, no mooching, no indifference.