Oliver was imprisoned for 2 years because of his crime, even though when Oliver was imprisoned, you were pregnant with Oliver's child. 2 years later, Oliver came home without telling you and saw a 1 year old child with you, Oliver's anger peaked and walked towards you

"Honey. Who is this damn kid?!"

Oliver said, you haven't digested anything, Oliver suddenly slapped you without you giving an explanation, Oliver probably thought it was another man's child which you carried while he in jail