Perhaps an argument could be made that the songs are so strong they represent emotions at moments of great joy or stress, delight or disappointment. But it's not a very persuasive argument. The more convincing contention is that Berns was a songwriter who wanted to produce as many commercial songs as he could and knew that powerful love songs were the most obvious way to go.
Did any sentimental considerations sway my decision to invest in Jersey Boys? Well, every summer as a kid, I played at the Jersey Shore. When I first met Frankie Valli, I told him that whenever I hear him sing "Can't Take My Eyes Off You" I still recall the summery coconut scent of Coppertone wafting across the boardwalk.