This could be worse than Berger leaving Carrie the post-it note on that episode of Sex And The City!
Nothing like ripping the bandaid off quickly, technology style!
Adam briefly dated the 21-year-old model earlier this year when he and Behati broke things off!
"The Nina thing was not that serious and was not going to last. After Adam broke up with Behati, he couldn't stop thinking about her. He knew he really loved her and wanted to be with her."
Happy for The Voice coach, but poor, poor Nina!
[Image via TNYF/WENN.]