Her intentions were probably good - like someone said, she probably can't fathom (or is afraid of) being alone and therefore holds everyone up to the "you have to have someone to be happy" thing...
she just wants you to be happy - though she's judging her view of happy
I'm getting this from my mom of all people. She's starting the "old maid" references and keeps telling me to find someone...male or female, if I love them she'll love them blah blah blah....but I know she just wants me to be happy - though she's going about showing it in the most annoying and maddening way.