Melbourne is said to be a "water town" by my classmates. What should I do about it? 😭

So, the thing is, I'm studying abroad in Melbourne, and as far as I remember, I haven't told anyone about it. But then my bestie suddenly tells me that someone in our university group chat said: "You couldn't make it in China, so you went abroad to do a master's." It really got me fired up, my hands were shaking. We barely even knew each other before, and now they're spreading rumors. How should I clap back at them in a reasonable way? I want to keep calm, not get too worked up, and make them feel embarrassed. ❤️ Wishing everyone a smooth and joyful journey through their study abroad experience!