Most of this is entirely lost on Valjean, and it shows. It is clear he does not know any details.

'We do not know he threw himself into the river,' he points out, calmly.

'That is an assumption I will not make, unless hearing it from Javert himself.'

Which he is sure he will never do. And does not want to either, because then he would have to hear the reasons for it. It seems the man may be far more mad than he ever realised.

'My point is not regarding the rules of this bar, though I hear it is possible mind control was used. Having met the vampire in question myself, I would not be surprised to learn it is true. My point is that if your assumption is correct, and that Javert harmed himself, then he should not have been allowed to be harmed further.'

He did not save his life so that vampires could use him for supper.

'I have told you I do not know him well, and it is the truth. But I believe I know him well enough to say that he would not willingly allow himself to be used in this way. You are on Security. I have no doubt you know your job. I-'

He falters here. He does not mean to make accusations. Indeed, he hardly knows what he feels at all.