Mr. Prince, you're not really allowed to be upset at this point. You are the second most responsible for all of this, just barely behind Pina. And being affected by a love potion is hardly an excuse. She wasn't mind controlling you, she just made you like her a bit more than usual. That shouldn't affect your ability to distinguish wrong from right.
Also, I like how throughout this whole thing Remilia has been going all "Ohohoho, I'm sooooo evil and manipulative!" when she's saving the world and giving people homes and jobs and helping the economy. And all of that was because she wanted to clear Emi's name. She is being completely selfless here, but I guess it's just in her blood to play the role of the "villainess."