Okay, so I wrote this a loooooooong time ago. This kind of actually happened to me in the game. I wanted to go out with Rise, but I couldn't turn down Yumi once I got to that part. I thought that if I went out with Rise afterward, I'd break up with Yumi or something, but it never happened. XD If you see any errors in this, please tell me.
Souji was an honest guy. Seriously. He always tried his best, he gave his honest opinion in a constructive way, and he never cheated, especially on a girl. Until now.
He had been going out with his girlfriend Yumi for a few weeks, and it was nice. They always stalked and hung out together whenever he wasn't in the TV or working, but that was the problem. It didn't really feel like they were going out. It just felt like he was hanging out with another one of his friends. he knew she was serious about their relationship, but he couldn't help the way he felt, or didn't feel. He didn't have the heart to break up with her, though. He figured the reason he went out with Yumi in the first place was out of pity, not love. He couldn't just abandon her right after her father died, so he pretended to return her feelings.
So, when super-cute former idol Kujikawa Rise came along, things got difficult. When he first met her, she was so gloomy and depressed that it was shocking. "Is this the real person behind the Risette we see on TV?" he asked himself more than once. But once they rescued her from the TV and her true personality was revealed, it was hard not to be attracted to her.
At first, he just passed it off as a simple physical attraction, but after he go to know her, he realized that was not the case. So, when Rise confessed her feelings for Souji, how could he refuse? He tried, he really did, but before he knew it he was holding a crying Rise in his arms.
Now came the task of breaking up with Yumi. Souji decided it would be best to be honest because he was an honest guy, but after trying several times, he just couldn't. Every time he tried to talk to Yumi, she would look so happy that he just couldn't break her heart. So, instead, he decided he would just go out with both of them and no on would ever know.
That's it. This is. . . not my first fic. XD But it's only the second fic I've ever posted. I have a longer Hetalia one that I'm working on and I might post, but I want to finish it and fix the fail in it before I start posting it, because I have a habit of not finishing things.