Do you need to watch love alarm before watching season 2?

I really want to watch season 2 because of Sunho and Yukio. But I'm not the biggest fan of love triangles that's why I don't want to watch season 1. So, I'm just wondering is it a must to watch season 1 before watching s2. will I understand what's happening in season 2 if I don't want season 1 or do I need to watch season 1, cuz I understand most part of there's a love alarm app and mine is love triangle and on between the one girl and two guys.