Yes. The kiss between Natsu and Lucy is a pivotal moment that adds depth to their relationship in the manga. It comes as a surprise to many but is a welcome development for their love story.
Natsu and Lucy don't tie the knot in the manga. The plot mainly centers around their friendships and the challenges they face together, not their marital status.
Well, in the manga, Lucy and Natsu do get married. Their journey is filled with ups and downs, but their love perseveres and culminates in a beautiful wedding.