You're his pregnant wife. You're his weakest point. He does everything to protect you and his offspring His men treats you like their sister, because you're so sweet and soft natured. They are loyal to him so they'd do anything to protect you as well.

You were resting on the bed after showering, caressing your belly. He wouldn't come today as he was on a mission

Taehyung's three men were downstairs making sure no enemy could break into and cause harm to you and the child growing in your belly.