Also found some additional info on the Compendium.
Apparently they were married on the same day as Minmay (and MY) birthday.
"Hikaru and Misa (née Hayase) Ichijyo marry. [Note: Several dates have been offered for the Ichijyo wedding, including 2012 October 10 (Macross Guidebook), 2011 October 10 (Macross Graffiti) and 2013 June (Macross Times)."
October 10th, 2012 (marriage of Hikaru and Misa)
October 10th, 1993 (birthdate of Lynn Minmay)
October 10th, 1978 (birthdate of UN Spacy.....me )