In the end, the healer never got to Lane. After the prolonged, fruitless efforts to resuscitate Brian, he announced that he was too exhausted to carry on and help Lane as well.
Even though there were Guides around. He could easily receive some guiding and have his strength restored.
But he didn't. Not necessarily because he didn't want to (although that seemed to be true as well), but rather because of Team Leader Patel, who had clearly hinted that this was what he was supposed to do by asking him suggestively whether he was tired.
No one spoke up for Lane. Under any normal circumstances, perhaps they would have, but after hearing how Lane abandoned their Guild member, leaving him to die while only taking care of himself, they all felt that there was no need for that. Since Lane hadn't helped Brian, he didn't deserve their help.
