Okay I know that like half of the fandom is pissed over Leo’s lack of character development and how he acted in BoO but I just noticed something.
Leo planned his death. He created his own death plan and went through with it. All the way. He didn’t have to. Anyone from the Seven could have died at any time. It never specifically said Leo would die in the prophecy, just hinted at it.
Yet Leo was the one who died. He knew that he might not ever survive. But he went through with his plan and did nothing to prevent it. He sacrificed himself willingly.
That, added with how scarily accurate his death plan was, makes it seem like he wanted to die in my opinion. I may be wrong.