Why didn't 456 ally with 120 sooner?

At the end of RLGL, Hyun-Ju (Or Player 120) saved him and Player 444 when she managed to grab onto him so they wouldn't fall over. Even though their efforts were in vain, as Player 444 was still killed, why didn't Gi-Hun ally with Hyun-Ju afterwards?
Like, basically, she just saved his life, so why did he ally with her much later (Around Mingle)? I would have expected an allyship almost right after.
That didn't happen with Ali.