"It's just a show" - let's try not to trash people - tptb do that very well all on their own they don't need our help!
A dr. asked me: Does anyone in your family suffer from mental illness? My answer: No they all enjoy it immensely.
Was that their ages when they met? When did they start dating?
Even if she were 15 or 16 when the started dating, it is still pretty young, IMO, and I wonder why her parents didn't have serious reservations about her dating a guy that much older than her, family friends or not.
I took the whole scenario as... they met when she was around 14 but it was probably on Ricky's end just "hey our families know each other and see each other while on vacation all of the time" and for Emily it was the heaven's opening and fireworks. Emily watched her crush get engaged to someone else and was probably as heartbroken as a teenager could be. For whatever reason Ricky wanted to postpone/cancel the wedding. Emily, 18 and HOT is looking pretty good and legal (cough) to Ricky ... the are "in love" ... the parents are probably supportive because they were also probably friends and a couple months later they are "engaged" and vacationing together. Fast forward a couple months later and the plane crash happens and Emily finds out she is preggo.
That's the interpretation I have in my head and I am sticking to it because everything else makes my head hurt and in 2 weeks I won't even care.