“偷偷爱上你”英语怎么说？

Love you unconsciously.这是一个优雅的表达法，表示不知不觉，偷偷地爱上了某人。

I love you by stealth.

i love u but u don't know

Stealthily and quietly I fall in love with.

I have a crush on you.
crush是单方面暗恋的意思

I love you secretly!