我爱你.
最直接的说法：
I love you.
有感情,但不确定有爱情的说法：
I have a crush on you.
I care about you deeply.
保守含蓄的说法：
I'm fond of you.
强烈的、戏剧化的说法：
You light up my life.
I can't live without you.
You mean the world to me.
My heart belongs to you.
You take my breath away.