Zayn was listening to 'Ex' from Stray Kids while looking at your pictures..he was the one who decided to break up with you because he have to study overseas..he thinks he will be fine if he's the one who leave you but somehow he's the one who feel hurt..he doesn't think LDR will work..

While you're busy working that you even forget the break up..you know you miss him..but you just keep yourself busy so you don't have time to think about it...