It's pretty rare to have such a heartwarming couple story.
Usually they're very kitsch, or full of hurtful drama.
That's probably because it's a manhua and not a manga.
Romance manga can't help but be either too childish, overdramatic or full-on tear-jerking. That doesn't make them necessarily bad, they're just harder to enjoy that way.
Or simply comedies, while the romance part is only secondary.
I personally wouldn't call that a romance when the first goal of the story is to make you laugh each chapter, and not try to make you feel like you're living something meaningful through their experience (it's not a realistic experience to only laugh in a relationship, there's more to it to a romance than only being funny).
Very well done. It could use more details and be slightly longer maybe, but it's still very good.