To some degree, she was Lucas Cross' only ally, because, characteristically, she selfishly thought of what he had done for her (he had built their kitchen shelves) and not that Selena would have been traumatized again.
To some extent, she was Lucas Cross' sole confidante, as he typically prioritized his own self-interest, focusing on what he had done for her (building their kitchen shelves) rather than considering Selena's potential trauma.