A is for Assume
Severus Snape/Harry Potter
Assume - - (v.) to suppose to be the case, without proof
They had all just assumed.
Harry wasn't in love with Ginny Weasley. She was great and all… sometimes… but she just didn't make his heart flutter with anticipation the way that his suitor did. Who was his suitor? Well, asking is not assuming, and he could appreciate a good and honest question.
Now, before the whole of the Weasley family and all of his friends, Harry rejected Ginny before turning and accepting the steely embrace of his short tempered Potions Master. Severus, the possessive snarky man that he was, glowered as Harry merely smiled at the gawking crowd of onlookers.