User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-104.7.80.176-20150603035954/@comment-98.227.238.52-20150603070132

Not to mention that she pretty much knew that Raynare was a Fallen Angel and that it was a possibility that she was going to kill him, but Rias didn't do anything about it. Just gave him a leaflet and let it happen. So in a way it is pretty much her own fault that he was suffering from that trauma for so long. Did they even think to see if he was alright after what happened. All Rias told him was that the girl who attack him was a fallen angel and that they were their enemies and that was the end of it. What would she have done if Issei hadn't made a wish. Just let him die and go about the rest of her day.

Isn't the main reason she made him her servant in the first place because she wanted to get out of her engagement. Well, she has what she wanted she is free from her engagement to Riser. What about Issei; what does he get out of this whole fiasco. He can't go back to being a normal person anymore. He can't talk to his friends and family about what happened to him.