Dahlia was left all alone this time with Romulus going to make plans about her delivery. Without her interference, Romulus would have killed the midwife for attempting to sink her filthy fangs into her neck. But she couldn't tell what Romulus would do to her beyond this room. Her husband might decide to end her life so as to ensure the secret of her pregnancy doesn't leak to the vampires.
At the moment, it was obvious that her pregnancy would be taken care of by human midwives that wouldn't be affected by her blood and attempt to take it leading to their death and hers as well. General Alaska confirmed that her scent was quite alluring, almost irresistible and It was quite a mystery why Romulus wasn't affected by it.
Aside from the fact that Romulus commented on the fact she smelled quite good, he hasn't been overtaken by bloodlust and attempted to kill her. If anything, he was driven to have more sex with them.