There's only so far you can take a relationship before you got to get into things that are too serious or over the top. I'm 20 years old. I was in a relationship with a girl I love for three years. Where do you go after three years? Then you've got to start thinking about other things and I'm too young to think about those things.
I'm lucky that my real-life Mom has both a great sense of humor about herself and an amazing ability to slip into complete denial if the subject matter gets a little too close to home.