Women send songs to men and really miss you. -Baidu
I think this is a clear and simple thing. A woman sent a song to a boy named I really miss you. He didn't just let you listen to music. In fact, what he really means is to let you know that he loves you very much, misses you all the time, and wants you to stay with him all the time. This shows how deeply he loves you and how much he misses you.