He wasn't ever good with reading girls, but he was pretty sure of what was to come. "..Kira.." He wanted to apologize and make it all better, but he knew that wouldn't fix anything. Words were lost until she turned her back to him and he felt something break inside him. He felt bitterness that he shouldn't be allowed to feel twisting it's way inside. Darkness that wouldn't have been there before Charlie was involved.
"Here..Metallica. There yours..you look beautiful tonight, take Jo, or Heather, I'm sure Buffy would like them. She does have a weird taste in music though." He forced a smile and tried to make light in a bad situation. Kira should have felt happy about the concert. She would have it he hadn't just told her he kissed her mortal enemy. His mortal enemy, his...he wasn't sure what anymore. What was Charlie? She was always on the edge of his mind, always invading his thoughts and warping them. He wanted to save her from darkness, and instead he was being pulled into it and drowning under the surface. Addicted to it.