the person that am in Любовь with is so cold .. plz i need ur help guys .. what should i do about that ?

well .. my problem is that the person am in Любовь with is so cold and sometimes he act as he dont care about anything ..
i know he loves me back he сказал(-а) that but am so romantic girl and i really hate this situation .. some times i think that he doesn't know anything about Любовь .. so what should i do about that ??