Entertainment Weekly has the scoop on what’s going on with Cas in season 8.
‘SUPERNATURAL’: DISH ON CAS
I’m still reeling from last week’s season premiere of Supernatural. But the one thing that has left me with a pit of fear in my stomach is this mystery surrounding Cas. (Seriously, how creepy was Dean while talking about it in the cabin? Love!) But as Misha Collins told a group of journos during a set visit to Vancouver, whatever transpired in Purgatory between the two of them started off as an act of penance for Cas.“[Cas] left Dean because he wanted to try to keep him safe,” he says. “[Cas] being around is actually a liability in Purgatory, and he’s working to try to right the wrongs of his past doings.”
Episodes 7 and 8 will reveal much much more on that front as well as enlighten the audience about Cas’ arc for the season that involves a big threat, says Collins. “There’s something going on with Cas that neither Cas nor the brothers know. Cas is sort of being manipulated behind the scenes and he’s not aware of that and neither are the boys,” he says. “We’ll see how that affects their relationship in the long run.”
Meanwhile, when will we learn Cas’s thoughts on Dean’s new vampire buddy Benny? Soon. And let’s just say they all won’t likely be sharing beers any time soon. “He’s wary of Benny from the get-go, and I think that he then is possibly a bit jealous too of the friendship or camaraderie that happens between Dean and Benny,” he says. “You know, Cas doesn’t have a lot of other friends in Purgatory.” Someone get this angel a hug!
Source – Entertainment Weekly

It breaks my heart a little to hear about all of the struggles that Cas will go through this season. I am very curious to find out how he is being manipulated without his knowledge; but a co-worker at DISH mentioned that it may involve the new group of angles. I just hope that he is able to escape the situation as unscathed as possible, although I am sure it will cause a riff between him and the brothers. I hope to see Cas return soon as I watch this season on my Hopper. My busy schedule makes the 2,000 hours of recording space a blessing with all of my shows throughout the week. I have been a fan of Supernatural since the beginning, so missing an episode is not something I can do. Cas has been through a lot in this show, I hope that the brothers remember this and forgive him for his past faults.