As mentioned below, these lyrics are not correct. I think this song falls in the line of new love turning into old love by marriage. Blindly, you fall for someone not thinking of how it will turn into comfort rather than remain lustful, so you don't see the boredom ahead of you. Hardwired to a person, or life. It's like, she's saying "Well, I'm already plugged into you and gonna be hardwired here for a while, now what? Perhaps I'll learn to play the guitar because I need to spice this up if I'm not going anywhere. Might as well." Also, it refers back to when they were happy, and how the nostalgia can be something to despise when you're dealing with the boredom...
As mentioned below, these lyrics are not correct. I think this song falls in the line of new love turning into old love by marriage. Blindly, you fall for someone not thinking of how it will turn into comfort rather than remain lustful, so you don't see the boredom ahead of you. Hardwired to a person, or life. It's like, she's saying "Well, I'm already plugged into you and gonna be hardwired here for a while, now what? Perhaps I'll learn to play the guitar because I need to spice this up if I'm not going anywhere. Might as well." Also, it refers back to when they were happy, and how the nostalgia can be something to despise when you're dealing with the boredom...