With all the training Lren would have been doing in the past five years in and around the Shroud, it's liable the two of them may have bumped into one another or even sparred, if she was perhaps training in the open!
Lren Rendarren:
Ever the one to test his own strength against others, he'd likely be seen training the Shroud and hanging about the Lancer's guild in more recent years. The occasional conversation with himself would also be something that would be apparent, if one saw him enough! Though generally quiet, he would generally praise those who demonstrated prowess in combat, regardless of which personality was speaking.
Oooohhh and an Elezen too *peers* shall we share hatred or drinks? Or simply cross staves? Maybe all three?
En guarde!
((BTW- love your story so far ))