baby attached to mommy

since I am a SAHM to my four months old, my baby is more attached to me than her dad. her dad works about 13 hours a day Monday to Friday. when I do grocery shopping for an hour and a half while baby is with dad at home, she cries the entire time I'm gone. once I get home, I hold her, she suddenly stops crying. how does she get used to her dad as well when I have to do little errands?

her dad does try ways to make her stop crying like holding her, feeding her, etc. but nothing worked. help please.