found on the dragon ball z wiki "One of the many filler stories written by Toriyama and his staff. After the end of the saga, Launch finds Tien Shinhan once again; she fell in love with him at first sight and had been constantly pursuing his whereabouts. He even reluctantly lives together with her, but she is not cut out for farming and Tien has no interest in romance, so she leaves after just a few days. After that, Launch apparently drops in from time to time."
Well, it’s cute at least that she visits him despite him not having any interest in romance.
Canon or not I’m still gonna ship them.