(mr plant doesn't exist in this so he's yours)

you and Argos were going to earth for a month and you couldn't wait to show Argos everything on earth

Argos: so we will be here till January 2nd? I can't wait to be on earth, earth sounds exciting

yes it was December, tomorrow you just wanted to show Argos what Christmas and New year's on earth is about... And you two are dating already.