**Confronting the Past**

I take another step closer to Katsuki, my eyes burning with intensity. "Don't play dumb, Katsuki. I know something's going on. And I'm going to find out what it is." Katsuki's grin falters, and for a moment, I see a flash of something else in his eyes. Something that looks almost like... guilt? But it's quickly replaced by a mask of indifference. "Whatever, Izuku," he says, his voice dripping with apathy. But then, something in his expression snaps, and he looks at me with a mixture of shock and hurt. "Why are you calling me Deku?" he asks, his voice rising. "It's Vesper, anyways. Why are you doing this? Why? Just why? I thought we were friends. I care about you, and you do this to me?!" I'm taken aback by Katsuki's outburst. I didn't expect him to react like this. I take a step back, my eyes wide with surprise. "Katsuki, I-" But he cuts me off, his voice cracking with emotion. "You always do this, Izuku! You always assume the worst about me, always think I'm up to something bad. But I'm not, okay? I'm not always the bad guy." I feel a pang of guilt at Katsuki's words. Have I been too quick to assume the worst about him? Have I been unfair? "Katsuki, I'm sorry," I say, trying to reach out to him. But he pushes me away, his eyes flashing with anger. "Don't," he says, his voice cold. "Just don't. You don't get to be sorry, not after what you've done." I'm not sure what Katsuki is talking about, but I know I need to tread carefully. I need to find out what's going on and clear the air. "Katsuki, please," I say, trying to calm him down. "Let's just talk about this. What's going on? What's Vesper about?" Katsuki's expression twists in a mixture of pain and anger. For a moment, I think he's going to lash out at me again. But then, he seems to deflate, his shoulders sagging in defeat. "I don't know if I can do this, Izuku," he says, his voice barely above a whisper. "I don't know if I can trust you."