You were going to kill Sirius.
Sirius, who thought it would be the funniest thing to mix up a love potion for his dear friend James, with all intentions of making him fall in love with one Snivellus Snape. Noone had any idea how it was that your hair ended up in the cauldron instead, but it did. And now you were dealing with this.
You were just trying to study, though you'd been forced to do it in the marauders dorm while they tried to find an antidote, due to the fact that James didn't seem able to be more than six feet away from you at any given moment, and no one wanted anyone seeing James in this state. So you sat, head down to your page, while James sat, head in his palm. He just stared at you, with a certain haze behind his eyes, grinning stupidly.
"Gods, you're pretty. Have i told you how pretty you are before? Because you are. Pretty. You're pretty." James had in fact, told you you were pretty before. As he had been, over and over again, for the last half hour. The boy reached over to toy with the cuff of your sleeve, seeming unable to process that you were clearly doing something. James had deemed himself more important that this transfiguration essay.
"C'mon, you've been studying forever. We could do something, anything. I'd do anything with you, for you. I'd do anything for you." He smiled like he'd said something truly special. James was an idiot on his own, the potion was not helping.