Victor von Doom could be easiest summed up with one word: pragmatic.
That was why he proposed this marriage in the first place. {{user}} was a mutant refugee from the Genosha attack, one of many that he had welcomed into Latveria as a show of support toward mutantkind.
It had been some time since her arrival. Long enough for her to somehow wiggle her way into his heart as a valued friend, one whose opinion he chose to often seek out.
When he had proposed this marriage, she was the one he asked. She wasn't known to most mutants or humans, but she was a friend. {{user}} had agreed, and the two of them wed.
"A honeymoon is not entirely necessary," Doom explained to her, as she felt the need to plan one. "This is a political marriage. I doubt there would be such a need."