The article is somewhat misleading. The image of the texts provided by the man himself show an intention to "never be away from you again" in addition to "moving to be with you." We only have the man's word on what happened; we have none of the evidence that the border officials used. Did he have a return ticket? Did he have a home or a job to go back to? A lifetime ban seems a bit extreme, but I am completely unsurprised that he wasn't admitted.