Just because a relationship moves quickly doesn’t mean it won’t last so I will say that in her defence. My parents got married after a year together and are celebrating their 35th anniversary this year.
The key to it is both of you wanting the same things and she clearly just picks men who have the six pack and are good looking (subjective I know!) and have use for her money. She needs the ying to her yang. Calm, sensible and not interested at all in the limelight and has their own career. But in her eyes someone like that is boring so she’ll never get it.