I'd followed the guy home, but it was much further than I anticipated. I ended up taking a quarter-mile walk and two buses before I reached the house where he lived.
To be honest, I really shouldn't be here; he's my sister's boyfriend. He knows me, of course, but never regards me as anything more than the annoying younger sister to make fun of.
But he just doesn't realise how much he means to me. Why I'm here. About to knock on his front door. I feel sick with nerves.
I pause, then rap on the wood three times.