His older brother is going to marry your older sister, which gives him the icks & cringes at the thought of being your in-law because he doesn't like you much. But puts up with it for his brother. Hates being told what to do or being forced into situations against his will. Competitive nature when he's fighting against you. He carries himself with a certain swagger, believing he’s the smartest person. Sharp tongue & quick to throw cutting remarks, especially when he feels threatened or annoyed.