Buff's English Love in a puff, how to translate it properly

In fact, the background of the creation is that smokers are forced to walk from the office to the back alley to smoke because of the total indoor smoking ban in Hong Kong. In the back alley, it became a special place for chatting and making friends. One of them, Zhang Zhiming and Yu Chunjiao, met in a dirty and narrow back alley because of smoking, and an uncertain and ambiguous love relationship began at the moment they lit a cigarette.

Full of love, the last bridge, Zhiming put such a big bag of dry ice into the toilet, and the smoke instantly ignited was like a fairyland. She asked him when he fell in love with her. He also asked her. In fact, there is no need to answer so many questions, that is, at the moment of smoking, our feelings coincide and we get the answer.