I had a very painful lump in my throat through all three stories. I hate what Jack is doing/done to Ianto. I had a idea that during the year that never was Ianto, who had escaped from UNIT at some point, teamed up with the rest of TW3 and while trying to rescue Jack (Tosh can be very convincing) was tortured and killed in front of him. After time resets Jack's guilt over his treatment of Ianto causes him to arrange Ianto's release back into his care. From there they both try to make amends to each other and the rest of the team and begin the process of forgiveness.