A muggle-born’s sibling sends them a howler in the middle of the school year and it arrives while they eat. When they open it, all it does is simply scream “WHAT TEAM?”. Nearly all the muggle-borns shout “WILDCATS!” before returning to their meal, leaving the pure-bloods in total confusion of what the hell they just witnessed.
It’s scary to find someone that makes you happy. You start giving them all of your attention because they’re what makes you forget everything bad that’s going on in your life. They’re the first person you want to talk to in the morning and the last one before you sleep just so you can start and end your day with a smile. It all sounds great to have that someone, but it’s scary to think about how easily they could just leave and take that happiness away too when they go.