Those phrases are things real people want to know about. Real everyday people commonly have a hard time with such basic issues as talking to their partner about whether they want to get married, or talking about what type of sex they like. Real couples do squabble over weightloss, shaving, smoking and drinking. Real couples do hurt each other then deal with that by trying to gain forgiveness or regain trust. Real couples do disagree about how much time to spend together. And so on.
None of this was invented by TV writers; none of it is the biased opinion of a magazine writer. Yet somehow it's very similar to what you see on TV and read in magazines. What a strange coincidence that popular entertainment mirrors what many people think about.
I just tried it myself and typed "how can i get my boyfriend" into a Google search field. It had some different ones:
"how can i get my boyfriends myspace password"
"how can i get my boyfriend back"
Those are sufficiently frequent searches that Google will recommend them. In other words, girls commonly want to hurt their boyfriend or invade his privacy. Boys also search for revenge.