So, on Monday, my sister (20yrsold) wanted to play Mario Kart Wii. So, we played and everytime she won, she was like, "YOU LOSE! I WIN!" and it ticked me off. But when I win, I get a grin. So, on tuesday, I won the majority of the races, and I just got that grin. She hits me when she loses. Today she came in and wanted to play. I beat her and on the last match, she complained about me being a jerk because I won't let her win. What am I supposed to do? Not play? So, then she ragequits and goes in the living room. I came out 5 minutes later and I went to my mom in the kitchen, and my sister automatically thinks I'm complaining about her. I told her I'm not. Then all of a sudden, she tells me that I'm a sore winner and that I'm supposed to let her win. My mom said that I don't need to try so hard and that I'm "Uber-competitive". I just left and went on my Wii and posted this.
So, help?