I relate, but it's a relief when you do eventually move on. A few months ago, I couldn't stop thinking about the coworker I mention in this comment, and now, I'm like "She's all cool and good, but we can't be together, and that's okay." She's not vegan, and I only date vegans, so oftentimes, I can just alleviate the pain of a crush I don't want if the person I'm crushing on is non-vegan. Reminding myself of their carnism will really turn me off with enough focus. She does seem like she has a "vegan heart," in that she gives off the vibe that she wouldn't be difficult to convince in theory, but yeah, you could never know for sure with this kind of stuff.