关于“闺蜜我爱你”的英语表达，综合权威信息整理如下：

一、直接表达方式

基础版

- "I love you, my best friend"（直接点明关系）

- "You are my girlfriend"（适用于明确恋爱关系）

情感强调版

- "You're the sister I never had, but always wanted"（比喻独特亲密感）

- "I adore you because you are so adorable"（突出吸引力）

二、唯美诗意表达

生活化比喻

- "You are my sunshine, my rain, my everything in between"（四季陪伴）

- "No person deserves your tears, and who deserves them won't make you cry"（珍视陪伴）

哲理升华

- "A friend in need is a friend indeed. Because of you, I understand what love is"（患难见真情）

- "Brief is life, but love is long"（生命虽短，爱却绵长）

三、场景化推荐

日常互动

- "Every day I miss you. It's hard not to think about you"（日常思念）

特殊时刻

- "Under it all, I love you"（困难时刻的坚定）

注意事项：

表达需根据双方关系调整措辞，若为普通闺蜜，建议优先使用基础版；若涉及恋爱关系，可增加情感强调或唯美表达。