I have a headcanon, that Andromeda was somewhat based on Jessica Mitford. She also ran way from her artocratic family, with two sisters who were involved in fascists circles. She was a well renowned author and journalist.
Marry for love if you can, it won’t last, but it is a very interesting experience and makes a good beginning in life. Later on, when you marry for money, for heaven’s sake let it be big money. There are no other possible reasons for marrying at all.