Its strange but single people spend time differently than the married people do at night. Been both and when married I devoted my evenings to my husband and his likes mostly. When he was happy, so was I. Since being single now which seems like forever, I love working at night. MY imagination kicks into high gear then and sometimes I can write until dawn. I also like to read the manuscripts I am working on at night. The only down side to that is if I happen to be working on one that is scary and really graphic I have nightmares. But that is a positive too because if it can give me nightmares, I know the readers of the finished product (book) will feel the same emotional excitements.... So you see, it matters whether you're single and have only yourself to please, or are married and trying to please and be pleased by your spouse. Which ever it is, just relax and go with the flow, life is too short to sweat the small stuff.