热情的夏天拐了西瓜当老公
[rè qíng de xià tiān guăi le xī guā dāng lăo gōng]
This nickname uses playful imagery, likening a sunny, lively summer romance to metaphorically 'abducting' or taking a watermelon as a husband. This highlights both the excitement of the season and adds a humorous touch by anthropomorphizing fruit in the context of relationships.