When you're checking your phone every 2 minutes to check if she's text you, when you find yourself thinking about her even when you're busy out of your mind, when you can't even fathom a world in which you two aren't together. When you see her face everywhere you look, and smell her on every thread of your clothing. You know you're in love when your heart melts at the thought of seeing her again, and when her hand slips in yours, you get butterflies and tingles through your body, whether it's after 2 weeks or 2 years. You know it's love when you feel it in your skin