...
Lara clearly likes Ramírez even more after the soul gaze, but Ramírez doesn’t just consider Lara to be an immoral vampire - he seems to respect her more after the soul gaze & maybe even realizes that she is trying to help him better navigate the Whamp Court by playing the come hither at him instead just being a succubus, perhaps that’s why he wasn’t trying to dissuade her with his knife?
He WAS trying to disuade her with his knife. But, whamps being whamps, Carlos was teetering on the edge anyhow.
Carlos initiates the soulgaze to stiffen his own spine.
Lara mistakes it as another attempt to dissuade her (the knife's not working! try magic!), not realizing that Carlos was using it to rebuild his own defenses against whamps, instead of as a weapon/threat against her.
Afterwards, they each come away with the soulgaze-granted understandings of one another, including his, that her word is good. So yeah, he "respects" her more, even as he understands that she is basically cooperating with the inhuman monster inside of her.