Ashleyyx3: Antagonist/ Author Patterns

In Vampire Diaries: The Return Series #2 Shadow Souls by L.J Smith, Elena Gilbert's boyfriends Stefan Salvatore was captured by the Kitsune Twins, Shinichi and Misao. The map to wear Stefan is located is in Damon -Stefan's evil younger brother- in the "Darkest Dimension" and she has to travel there with him. Damon wants Elena, and he hates Stefan. The only reason that he is helping because in one of Elena's other lives she made them swear to protect each other and her, she said this when she was dying on the floor. Damon is a man of his word and protects his brother and does not Influence Elena into "being with him".
I find that the Antagonist in the story is Damon, he is technically against Elena and Stefan though he is helping them out tremendously. He is extremely annoyed with the fact that he knows that he cannot have Elena, and it belongs to his "stupid younger brother". In one chapter he was being very mean to Elena, he was giving her the longest silent treatment, and making snide comments. Whenever she tried to touch him he would jerk away from her. He finally had a moment where he practically lost it, he grabbed her and kissed her, he smashed a window, he screamed at her to "leave him alone", and then he told her to run away. I was personally worried for Elena's sanity and health, you're in the room with an out of control vampire that's telling you to run away from him before he ends up hurting you and you're just yelling back claiming that you're not phased by his temper? I don't think that makes much sense if you ask me.

I find that there are a lot of Setting and Author Patterns. Usually what L.J Smith does is after every chapter ends she will switch to another scene with the other main characters so: Matt, Bonnie, Meredith etc. I have noticed that she is:

Staying in Damon's perspective.
Staying in Elena and Damon's scene.

When I noticed this I realized that something big was going to happen between them and that it was going to be explosive. Damon and Elena were always in a situation where they were in close proximity to each other and the tension and awkwardness level kept on rising. It felt as if you could just reach out and touch it. This is also when I noticed these things. I am reading this book from my Nook Tablet ® and I am making copious notes of everything, patterns I'm noticing, funny phrases and lines, and metaphors that I find interesting. It's all leading up to one big event that I can feel coming and it's going to be big; they always are. What will happen next?