Little Mix - Shout Out To My Ex Lyrics Meaning

It's obviously about Zayn and Perrie's breakup, but it's also telling others that you need to move on in your life after breaking up with someone you love. You can't dwell on the past, so you need to enjoy your future. There are so many other important things in life to do, don't waste it by feeling bad for yourself and wishing things would go back to the way they were.