The world could be dangerous. There were things lurking in the shadows that Adam may not have run across yet. She'd be there to protect him from the monsters that still roamed the earth in spite of the Winchesters' efforts... and he would protect her. It was odd that the offer to keep her safe meant so much. Cass was an angel, there was very little that could actually harm her. Somehow hearing him offer to keep her safe made her feel as if nothing would happen. Nothing would happen to either of them.
Closing her eyes, she returned the light kiss almost disappointed that it had been so short. "I feel that way too." She said softly, leaning in to press a light peck to his lips. "I think... I love you." Which wasn't a concept she was all that familiar with. Not on this level, anyway. Angels didn't exactly love. It wasn't supposed to be in their makeup. Cass, however, was telling the truth. What she felt for Adam was stronger than anything she'd ever felt. She loved him.