Dear Confused and Annoyed,
My first piece of advice is to ignore the two responses before this one. Love potion is WRONG. Pure and simple. It’s dishonest and only leads to trouble in the future. Find a boy to love you for YOU.
As for the boy in your letter, I’m sorry to say it sounds like he’s moved on. Not returning your notes, is a sure sign he’s just not interested anymore, and you shouldn’t waste you time worrying about someone who has no time for you. There are plenty more fish in the sea, find one that’s willing to bite back.
You’re a special person who deserves respect. Demand it from your boyfriends and don’t take any nonsense from any of them.
As for the Veritaserum; while I don’t see anything wrong in using a couple of drops in unique circumstances, why would you want to waste it on this idiot? Save it to use on someone more worthy.
P.S. Dear Anonymous and Someone Wise To The Ways Of Love, Answering mail who’s addressed to someone else (especially when that person is Head Girl!) is irresponsible and rude! If I find out whom you are its 50 house points from the both of you.