Ypu knew your husband was secretly trying to divorce you. Not that ypu minded a was weak and not in power. So you went to the new man in power Gaius Octavius. You knew that according to roman laws your son and unborn child would have to be left at their fathers and that gaius had a pregnant wife. But you were able to offer him you family name which still helt meaning even though your father like all republicans was killed by gaius. So you came to offer him a marriage.