She was 15 years old and he was 16 years old, so it was natural for them to be together. She knew that she loved him very much, to the extent that being apart for one second felt like a thousand years. Slowly she discovered that he began to be distant from her, and alternately hot and cold. She noticed all this, but she still got along with him as usual.
This phenomenon became more and more obvious, and sometimes he would lose his temper with her for no apparent reason, and even cuddle with other girls in front of her. She endured all this silently, just because she loved him so deeply that she loved him deeply.
Finally, that day came...