Down the Shore

So sad to say it but this book was super fun, romantic, hot and had an abundance of quick banter and tongue in cheek crazy making me completely in LOVE with it and teleported to 7th heaven. UNTIL the last 25-30% where it just did a 180 and plummeted headfirst into the peek of Mount Stupid and kept up the idiocy full on towards an even more stupid epilogue, so cheesy it left grease stains. Why?? It had SUCH potential??