A Chance Meeting at Walgreens (Malec)

Alec Lightwood is the underdog of a big shot family. He is gay in a place where gay is a huge no.
And he works at Walgreens.

Magnus Bane has been openly gay in the same town for over 2 years. He is a loner who is known for his fashionable clothes.
What happens when two completely different universes collide? Will it be something special?

Or is the whole thing shot to hell?