"你太懂我了"的英文表达可以是 "you understand me too well"。
这句话的意思是，对方对自己的理解非常透彻，甚至有点让自己不舒服的感觉。
下面是几个例句：
"You know me too well, I can't hide anything from you." (你太懂我了，我什么都藏不住)
"It's a pttle scary how well you understand me." (你对我的理解太透彻了，有点吓人)
"You read me pke a book, I can't surprise you anymore." (你看穿我了，我再也给不了你惊喜了)