Manners
A normal person would get incredibly mad at Jenna, but Khan didn't belong to that category. His relationship with her was also far from the ordinary, and they had both expected something like that to happen.
Moreover, Jenna didn't do anything terrible, at least from Khan's perspective. She had revealed a truth that Monica was bound to learn sooner or later. Khan would have preferred Monica to hear it from him, but Jenna's toxic sides had ended up getting there first.
"[Are you mad at me]?" Jenna asked without hiding her anticipation. She looked eager to reexperience their previous interaction, but Khan's silence ruined her plans.
Khan already had a heavy mind after meeting Rodney. He was in no condition to deal with those new problems. His team was also waiting for him inside the building, but he didn't hurry inside.