恋爱的感觉是快乐的, 幸福的, but the feeling can keep 6 months to 2 years only, after that, 恋爱的双方need to 迁移to 下一个台阶 by 健康and 平滑的, 平坦的, 平稳的, if 恋爱的双方 can't 不可以迁移to 下一个台阶 by 健康and 平滑的, 平坦的, 平稳的, then 呜...."呜...."