Back in the conference room, Kumar thinks they can finally rule the drugs out of the diagnosis, since Brandon's system has been cleared of them twice now. Taub says the drugs could have set off a "dormant neurological condition." Or maybe Brandon got horny. That happens, too. House takes this opportunity to says that coming clean can be damaging. Aside from triggering dormant neurological conditions, for example, it can lead to divorce. Taub figures this is about him and says the bank account was to buy him a car. Once again, it's Foreman who gets back to the case, suggesting a disease that causes hyper sexuality and visual agnosia. House starts talking about the horrific life Brandon can look forward to if it is that disease, but this time it's Taub's turn to interrupt. He's decided to demand an apology from House, and he even uses his newfound spine to stand up when he does so. He says any rationalization House had for digging into his life and his wife's disappeared as soon as it turned out that the wife had a real, non-threatening reason to have that bank account. House does not actually apologize, although he does say that Taub is "right." Not that House owes him an apology, but that House no longer has to worry that Taub will use his wife's indiscretion to admit to his own. Since his wife didn't do anything wrong, Taub can keep his mouth shut. This answer couldn't have been what Taub was looking for, but he seems to accept it.
Meanwhile, Foreman and Hadley have given up on House and Taub's participation in this differential session and talk amongst themselves about Brandon and his current state. House interrupts to say Taub might feel doubly guilty now that he knows that not only wasn't his wife planning to leave him, but that she's also buying him a car while all he can do is cheat on her. Taub probably didn't feel that way before, but he will now. House apparently paid enough attention to Foreman to say he's right about his latest diagnosis that won't turn out to be what's wrong with Brandon so I'm not going to bother looking it up to find out how to spell it. Frankly, I think House doesn't think Foreman's right at all, but he knows that the test to prove it will keep Taub at PPTH all night, which means he won't be able to run home and confess anything to the wife that will ruin his marriage.