Do you want a friend whom you could tell everything to, like your deepest feelings and thoughts?
like 为介词 = such as
You want a friend
You want a friend You could tell everything to
缺少宾语
a friend
whom who that 不填
从句起到修饰作用,修饰前面的名词 a friend.
You want a friend to ______ you could tell everything
定语从句
whom