Shortly after Heather moves to London, she and Mark talk about him moving in with her. He tells her if things work out with them sharing the house, he has another plan in mind.
Saturday night of the following week, the band has a concert at Wembley Stadium. He calls her to the stage where he takes over lead and sings the song he wrote for her in Aspen after they confessed their feelings for each other. It was the first time he had let her hear the song.
Heather's mother comes to London for Christmas. Jodi has told her and Heather that Mark has a special surprise for Heather, but she won't tell anyone what it is---Mark has sworn her to secrecy. Even his own parents only know there's a special surprise, but only Mark and Jodi know what it is.
On Christmas morning, the three of them open their gifts, but before they leave to go to Mark's parents, as he and Heather sit in front of their tree, he tells her he has a very special gift for her. As he expresses how much he loves her, she trembles inside; she thinks she knows what he is going to say next. It is something he has been hinting for months.