Does "Love You", written under a letter, really means that the person loves you?

Hey, this might sound ridiculous but I really don't know what that means. I'm from Germany and I spent the summer at a school in Great Britain. I now received a letter from a girl at the school and it was signed with "Love You". I just would like to know whether this is just a common phrase or... show more Hey, this might sound ridiculous but I really don't know what that means.
I'm from Germany and I spent the summer at a school in Great Britain.
I now received a letter from a girl at the school and it was signed with "Love You".
I just would like to know whether this is just a common phrase or sth. "serious".

I hope you understood the question :)
19 answers 19