"I was trying to remember how it was I felt at the beginning of the relationship that inspired that record because as bad as a break up can be, as bitter and horrible and messy as it can be, that feeling when you first fall for someone is the best feeling on earth, and I am addicted to that feeling," she told the crowd before singing her massive hit Someone Like You.
Adele: 'I'm married now'
"Obviously I can't go through with those feelings because I'm married now. I've found my next person."
Adele has been with Konecki, a charity entrepreneur, since 2011. The pair have a four-year-old son, Angelo, who is with the singer during her Australian tour.
Adele was left distraught last week during dress rehearsals for her Perth concert when debris from a firework ended up in Angelo's eye.
Breaking the news to fans in Perth during the first show of her stadium tour, she revealed: "We've been rehearsing here and up until last night we had fireworks for you.
"And obviously everyone likes a fireworks display. However, my son was watching in the crowd ... there wasn't much of a crowd, there was like five people. A bit of debris - it wasn't big - but a bit of s**t went in his eye and he was very upset, so I got rid of the fireworks."