You are cordially invited to the wedding of Lily Evans and James Potter.
The paper is delicate and intricate like a silken spider web spun into sheets, yet the words imprinted on it are to his eyes as ugly as a decaying corpse, he can almost hear its death rattle in the rustle of the papers. He knows that what he holds in his hand is all her idea and bar his name there isn't a trace of him in the design, choice of wording or style. He knows this but still wants to burn it for the message it brings. He stares at it in wonderment for a moment before tapping the delicate lettering with his wand, the letters move like angry snakes trying to change the words written but just as he starts to see another name replacing the original the spell breaks and James Potter reappears glaring at him scornfully. He scrunches the fateful paper and discards it to the floor but he cannot quite bring himself to destroy something that is so her, so for now on the floor it will stay.
For Severus Snape has been invited to the wedding of his childhood love and his hated enemy.