Sarafina wasn't intending to let those men into her house but when she reached the door to her house and was about to lock it, she decided to let it open without having a tangible reason.
What came to her mind was that she could let them in to just eat since she was about to cook, even though she knew that they didn't deserve her kindness, especially Duke.
Andrew and Duke did nothing but throw nasty glances at each other as Sarafina busied herself in the kitchen, cooking and snacking.
All she offered both of them was two glasses of water from refreshments. She could offer more than that but they didn't even deserve the glasses I water. This was Sarafina's thoughts and she also didn't want to show both of them her kind and caring side.
Her ex was a big lesson to her, she shouldn't even want a man for pleasure because they could always abuse her afterward.
Without showing to those men in her living room, Sarafina was scared deep inside her.