Do you think Lily would have fallen in love with the "adult-version" of Snape?

I think there is a very good chance. They lived in the same neighbor hood and Lily was his friend until he called her Mudblood. That's where Snape screwed up. She already had ties with Remus and he probably pushed her closer to the Marauders, where his number one enemy and Lily-lover got an easier p at her since she hated all things Snape now. If he had more respect for Muggles and Muggleborns during his time at Hogwarts, there might've been at time where Lily could've fallen in love with him.