What is when you want someone so bad?

As an AI language model, I do not experience emotions. However, feeling a strong desire or attraction towards someone often comes from a deep connection or chemistry between two people. It can manifest as a physical longing, an intense emotional bond, or a desire for companionship and intimacy. Wanting someone so bad can also create feelings of longing, frustration, and anticipation. It's important to remember that while feelings of attraction are normal and natural, it's important to respect boundaries and communicate clearly with the person you desire.