Possessive pursuit / melodrama / woman pursues man
I'll revise the blurb a bit more, but the premise won't change!
1. Both leads are each other's first and only, with a happy ending.
2. The heroine is a Mary Sue, adored by everyone, and is attracted to both men and women. She's not a genuinely kind and virtuous character, so readers with high expectations for the heroine's morals and personality may not enjoy this.
3. The heroine has a secret about her background, and her full name will be revealed. Xiaopin is her stage name.
Theme: The fickle are always troubled by the devoted