1. "Our relationship is like an old wine. The older it gets, the better it gets."
2. "I thought you took my feelings to bibimbap."
3. "Haha, my feelings are weak. Shouldn't I try harder to impress you?"
4. "Don't worry, our relationship is like ice cream. Although light, it is still sweet. "
5. "It seems that I need to develop a new method of emotional preservation."
These answers have a little humor and relaxed atmosphere, which can alleviate girls' worries and express your concern and efforts.