1, Death: Till death do us part. Describe love as single-minded, and never change until death. Now it is also described as a firm position.
2. Till death do us part: Till death do us part. It can indicate that love is faithful, and it can also be used to describe a firm belief or position.
3, from one to the end: more refers to one party's single-mindedness, but also metaphor loyal ministers do not serve two masters.
4. Have a soft spot for love: it means to have a special love for someone or something and concentrate your thoughts and feelings on him/her.
5. Loyalty: Loyalty is firm and will never change.
6. Single-minded: It means that you have poured deep feelings into people or things, but you can't restrain your yearning.