Nếu mối quan hệ trước có vẻ quá êm đềm, bạn nên làm cho cô ấy theo đuổi mình. Nếu ban đầu mọi chuyện quá khó khăn, bạn sẽ thay đổi để dễ dàng hơn. Nếu bạn tổn thương nàng, hãy nói lời xin lỗi. Thể hiện rằng bạn đã trở nên tốt hơn và chín chắn hơn.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
If you can't think of what went wrong in the relationship because you smothered her with love, then chances are that this was exactly what went wrong. She must have felt that your love and relationship was too easy, so you should try to make it more of a challenge.  Be aloof. You should still give her some attention, but act busy or distracted and like you're not giving all your attention to her for once. This will confuse her and will make her want you more. Be sparing with the compliments. If