Coax baby

Hi mummies, my baby 3m+ just cried for a good 2hrs plus almost non-stop. I tried changing diaper, carry walk around, feed milk and make warm, apply ruyi oil, sang songs to him he stopped crying for awhile but continue again..tried all these to make him stop crying but to no avail. He is supposed to drink milk but kept crying. Eventually after 2 hrs baby cry until hungry and after feeding slept on the bed when usually he only sleep in the electronic cradle. Not sure is it daddy told him he is going out as my baby cry just right after daddy goes out ? p.s. daddy is the main caregiver. If nothing can calm baby..how do u calm a crying baby?