1. I miss you so much and I want you here with me.

我是如此想念你，我想要你和我在一起。

2. You're always on my mind.

你永驻我心。

3. I couldn't stop thinking about you.

我没法停下来不想你。

4. It is painful pining after someone and boy I do pine for you.

渴望、思念一个人是痛苦的事，男孩，我真的很想你。（*pine after/for/over someone or something 渴望……；为……而悲伤）

5. You are all that I think about today and everyday.

我今天想着你，天天想着你。

6. The world looks bleak¹ without you here by my side.

你不在我身旁，世界也显得暗淡无光。

7. I long to see you, kiss you, and hold you in my arms again.

我渴望能够再见到你，吻你，拥你入怀。

8. You probably know that I love you but do you know just how much I've missed you?

你可能知道我爱你，但你是否能够了解我是多么地想念你？

9. The world hasn't stopped spinning² since the day you left. I need you to come back to me and make it alright again.

自从你离开后，我的世界就开始天旋地转。我需要你回到我身边，一切才能恢复常态。