Ok so I was just browsing through the site (since I am new here and all) and came accross your post! I have an answer/miracle for you. I have been lactose intolerance (can't handle lactose) for pretty much my entire life, as well as the rest of the family. A few years ago I heard about this product called **** on the news, and I decided to give it a try-- this is the BEST thing out there for lactose intolerant people!! It’s around only 150 bucks (and thats if they aren't running any promotions) and you only have to use it ONCE, so it’s not an ongoing costs or anything like that. My entire family and I have all completed this program, and from this none of us have had any problems with eating ANY type of dairy again (and trust me, I used to have it bad!!). ****** The link to it, if you want to see it is:
NoAds.com
In my opinion it’s an absolute miracle!! Maybe if your roommate does it they can actually eat REAL yogurt! I really hope this helps, I want to spread the word to others who suffer like I used to, and now its not even an issue in my life! Take care and let me know if you have any other questions about details!