Damon continued to hold the glass out to her. "Elena, you to drink. You know what is going to happen if you don't," he said. He was trying to hold it together, and be strong for her because that was what she needed right now, but instead he was falling apart. He was terrified that she would decided not to complete the transition and then he would really lose her. She'd already picked Stefan over him, but he couldn't handle her dying.