I think the song will be about a guy who likes a girl but doesn’t have the guts to tell her, and she is giving him hints that she likes him to by telling him his living in a box(...he only does wild things when someone else suggests it to him, so he wouldn’t feel stupid if something goes wrong...) she wants him out but she’s not going to do it for him, thats why she is dropping him hints about the type of person he is, so he can catch on and realise it and do stuff on his own, like asking her out, because she is not going to do it..in other words, she is telling him to wake up and smell the coffee, i like you...

or

she doens’t like him because he is always on his own and to scared to try new things

Just think of a jack in a box, he will sit there and do nothing until someone knocks on the box and only then he will jump out, but he will never jump out on his own