If you hung out with your friends one night per week while you were dating her, and throughout the engagement, and she didn't bitch about it...she has no right to bitch about it now. She doesn't like coming home to an empty house one night per week? Give me a fucking break...tell her to get a hobby, or to plan something to do with her friends. Don't give in on this....her asking you to stop spending time with your friends is NOT a reasonable request.
On the other hand, if she did bitch about this while you were dating, and through the engagment, and you married her regardless...then you're a fool and deserve all the grief you're getting now.