Unfortunately, that always seems to be how it is once you start a life/family. We don't know how easy we have it as single people in college. When I graduated, I thought: What now? And panicked when I graduated (as a ugrad) because I had no idea what to do with myself. Now that I'm older and have more responsibilities, I'd give about anything to go back to that confused state -- lol.
My prediction as someone who has observed lots of people under stressful situations and knows a thing or two about husbands and wives: She will do fine despite the grind of it all. (
You may not survive it but she will 
)