Him

You would expect a couple who has been dating for 4 years, about to be engaged to know most of the other's secrets, right? Lets see how wrong that truly is.

Ella(known as Ellie, or Ella-bella)

Finished her first year of college with her high school sweetheart by her side. Strict catholic parents, atheist boyfriend. Cares about everything and anyone.

Harley(he hates every nickname so everyone gave up)

Doesn't go to college. Wants to be a writer. Basically hates everyone but his Ella-bella. Parents wouldn't care if he died, as long as he wasn't in any debt they have to pay off.
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I suck at descriptions so please give it a try