The Wyatt Family or The Shield?
A Kindle Paperwhite is the superior device for reading. But it's not that superior as compared to a Kindle Fire. As you wish to do more than just read, I do recommend going for the Kindle Fire, and actually, the Kindle Fire HD has enough added benefits to warrant the extra $40 for it.
Get your own fridge in your own room or kick him out of the house (and change the locks). This is why I prefer to live in a studio apt without roommates, but I do understand that some ppl cannot help but have roommates. In the future, try not to have roommates that you don't know ahead of time. Don't waste your time calling the cops and definitely don't call 911 (they can charge you with misusing 911).