Elpis

We got Thiona before GTA6

That blonde guy was the one who told the 2nd ml to just snatch the fl regardless if he likes her and we can see in the flashback that that's what he did with the ml's sister and fl's brother....
And the blonde and ml's sister broke up, he was the one who wanted it...Did his love for her just die or Did he snatch the ml's sister cause he actually liked the fl's brother..