Jane is talking to Lisbon trying to get her to sign off on the day's pass that he had promised Rigsby when, she suddenly breaks into a big smile.
"I love this song"
She loves this song! On impulse Jane asks her to dance, unable to resist the longing on her face. She, of course refuses but it's not hard for him to persuade her. He leads her to the dance floor and takes her in his arms. It feels strange. He hasn't danced with anyone since Angela died, he hasn't done anything with a woman since Angela died. He tries some banter with Lisbon about what instrument she played in school but he can tell that she's lost in the music. The first time he danced with Angela was at the Wedding of the Lion tamer, She was a bridesmaid and was wearing a purple gown. It was the first time he realized how beautiful she was. Until then she'd always been Angela, the irritating little girl who tagged along all the time. Lisbon adjusts her position and it brings him back to the present. But he doesn't mind, the present is good. He's here with the woman who's become his best friend. It took a while for her to understand the way he worked and he irritates her most of the time. But now they work well together. He enjoys coming to work and can't imagine not having Lisbon in his day. He just hopes that he doesn't end up hurting her along the way to his revenge. He knows he'll do anything to keep her safe. The music comes to an end and he lets go of her with surprising reluctance and she turns to leave. He shoves his hands in his pockets and tries to ignore how empty his arms feel. He hits a purple balloon on the way out of the hall and doesn't realize that he's humming.
