Jackson is a Tennesean 24-year-old still talking about the college life and kicking off a career, and Holly is a 31-year-old living it up as a wine safari guide in Los Angeles.
They’re in different locations, lead different lives, and may have different dreams for the future.
One other way to interpret Holly’s statement is she’s merely acknowledging the two are at different points in life which may lead to them breaking up whether she wants it or not.