this song is a message directed to the boy. the girl simply wants him back as he was the reason she lived. he was her true love but now he has fallen to such distress and the 'girlfriend' tries as hard as she can to bring him back . the moment was between him relasping some seconds of happiness then dark path he tries as hard as he can to go back but its in vain in the last he is consumed and he still becomes a emotionless. in the end you can hear the girl calling him to look the sky as she is saying she is still there to help him. question - what happens next? there are moments where its too late for realizing his fault but what i think is his girlfriend will finally snatch him back from the digital ' girlfriend ' (the digital gf looks like the real one maybe because the real of thinks her as more influencial ) this is a song not an anime we cant conclude more than this but i want to see what happens next see ya guys