I say, "Just one more row..."
It's what my grandmother said when my grandfather interrupted her knitting. It's code for "Let me know if the house is on fire or you want to take me to the LQS."
Now, if you're wife is sincerely saying, and your inner voice is agreeing, that you spent too much time on quilting, make a schedule and stick to it. It sure is easy to let some things slide while we're having fun. Good to learn some discipline in the beginning.
I know a certain someone who can play a video game all night. I think we can all agree that "all night" for just about anything is not good. :0D
Also try sewing next to her while watching TV. She might not like it or she might appreciate the company. It works for me. Would she like a dedicated date night? Or, maybe a joint craft project?
Just try to stay away from the all nighters. Unless someone is paying you and you're on a deadline. That's about the only socially acceptable reason for sewing all night long.