How have courts interpreted testimony by a defendant's wife during the guilt phase of a murder trial?

about his relationship to his wife helped frame his observations about her routines. None of this testimony was improper. (See People v. Salcido (2008) 44 Cal.4th 93, 151, 79 Cal.Rptr.3d 54, 186 P.3d 437 [affirming verdict in capital case in which a murder victim's wife's testimony during the guilt phase that the victim recently changed his work schedule so she would not have to drive during her pregnancy was not improper because the testimony "scarcely touched upon the victim's family life and did not relate the effect of defendant's acts upon family members"].)