Little bit that I might write out just to make it make sense: Two people, I'll call them Mary and Zach, and they're in love with each other, yada yada, but Mary had to move away and they didn't keep in touch. Mary always fantasized about getting to see him again and what she'd say. Gotta make a good second impression, of course. Years later and Mary is visiting town again. She's walking through the Grocery store when they see each other, and Mary falls to the floor right then and there in crippling pain because he's literally so beautiful and she loves him so much it hurts. She's clutching her chest, trying to calm her beating heart because she's gotta say the line. She'd look up to see Zach looking down at her with concern and care in his eyes and it's too much; she passes out.
After that, she'd probably be taken to the hospital, and Zach wouldn't be there because he's convinced he's hallucinating the love of his life. However, he left his phone number just in case, and an hour later it rings. Or maybe that's too hopeful?