Due to Lucien's confusing words, Alexa thinks he is lying to her in order to buy time. And she can't help but find a dirty and cowardly move.
"I really thought you looked like an interesting man..." She looks at him with a disappointed expression as she continues grabbing him by the neck. "But it looks like you're just a demon who likes to use stupid tricks."
Lucien rolls his eyes because he can't sigh and has trouble speaking. "That is complicated... but I will explain everything to you... as soon as we are done with this."
Again, Lucien's words make him sound like he's just trying to buy time. Well, he also knows that if he starts talking about sex in the middle of the fight, it would only make her more suspicious of him, so his only alternative is to resist for another seven minutes, not an easy task.