Yea...I'm a bit concerned that you didn't really do your research beforehand. You can't get a snake and then expect it to be like a cat or a dog. A snake doesn't care if you "play" with him. Your snake doesn't need or want a friend or a cagemate. They don't get lonely or sad or bored. They could give a hoot, so long as you keep them warm, give them a nice dark hidebox, keep their water bowl full, and feed them on schedule. It might be disappointing if you were expecting your snake (or snakes, in this case) to be something he isn't. But that's how they are.

There are a million and one reasons why your snakes wouldn't be eating after you seperated them, but I'd be willing to bet money that it wasn't missing their cagemate that did it. What are your temps like? Humidity? How did you have the cages set up?

All I can say is, please, for the good of your animals, give them their own homes.