I think there's a post in the handbook on how dating should should a stress-free experience for you. Let me remind you that the same applies to falling in love too. Honestly, you shouldn't fall in love with a guy who is not serious about pursuing you. Worrying about whether your crush likes you back, wondering if you can attract his attention or if you're good enough for him, and feeling miserable when he ignores you or after you discover he is taken... it's all not worth it. A man should add value to your life instead of adding more anxiety and misery. I like to think if it's meant to be, the relationship will happen naturally and you don't need to worry about whether he likes you back or if you're worthy of his attention.