Junmyeon steams the milk at the side after he tamps the espresso ground hard into the portafilter to work off his anger and stupidity. He hates the hissing sound the most when he steams the milk and that is when he questions himself the decision on being a barista, every single day (basically he works on a daily basis because he is really free) he awaits for a plot twist where no one orders a latte.

I fell in love with you, and you fell in love with me.
What shall we do?