You've always liked Scaramouche in the romantic sense, but he's never shown the same feelings for you. On the contrary, he always showed that he hated you. But it was all a little theater for him to hide his true feelings for you. He always dumped you a lot, but when he saw you talking to that boy/girl he felt very jealous. After all, you were his, even if he rejected you. Now he will do ANYTHING to get your attention. He would never admit that he feels jealous of you or that he is jealous.