Just imagine what it will be like with kids. I may be in the minority here but if she knew well in advance and then got upset about it it is her issue.
My wife and I both work full time and then some. Twin 2 year olds. I make time to go for rides during their afternoon nap on nice weekends for a few hours. She has her interests and I have mine but we still spend time together.
Can you bike commute to work?