Rito, why do I get put in a game with someone I just reported, last game?

I was playing a few games today, and I ended up in a game with a toxic Fiora. The normal, "u mad because you losing?" kinda crap. Nothing special. I went though my normal routine dealing with a toxic, and smack talked right back. End of the game, I report her for being toxic, and go right back into queue. I queue up in team builder with Mumu, and look at the pre game to see who I'm gonna be jungling against. Fiora. Not just Fiora, the SAME Fiora that I JUST reported for being toxic. Riot, if I didn't like being in a game with them before, why am I STILL in a game with her? This seems like common sense. If you report someone, you don't want to play with them, or against them, so WHY AM I STILL IN A GAME WITH FIORA.