Yesssss, these are the best! It just has a kind of sensation, when you start to have a romantical bond with someone who used to hate you, it's just way too divine. It might be red flag, but the healthiest red flag ever.
I think it may be because of the character development someone goes though rather than just being perfect from the start
Indeed, enemies to lovers or weak with strong can represent development and bonding the best, probably :D
