Being blamed by a roommate for everything

This person was like a brother to me. I've been living with him for roughly 2 years, and I would have done a lot of things for him. The three of us got a home because we enjoyed living with each other. In the past, the three of us would have so much fun. But one day he went berserk.He likes to keep the the house spotless clean. In the past, he wasn't a clean freak. His girlfriend has OCD and she feels uncomfortable when the house is messy. So I've been the only one cleaning the house for his girlfriend whenever she came because I respected him as a friend. One day, his girlfriend came and saw a mess but he didn't tell us that she was going to stay. I'm not a clean person at all. I'll do it if required, but it's not in my personality to be spotless clean. Of course, I've left some stains behind occasionally, but I tried my best to meet his needs.It's been about a year later. Now, I come home and he's yelling and blaming me for not keeping the house clean...even though he hasn't done any cleaning for the past few months. When I confronted him about it, he said that he was testing me/us. His justification for not cleaning was to test our cleaning abilities and flipped out when there were some items on the coffee table (mug, coaster, marker, parchment paper) and some stains on the ledge of the fridge. Then, he said that it was just one of the many examples. Issue is that I KNOW that we've been keeping the house clean - not spotless - and he refuses to tell me. Instead, he just mentions, "You're an adult and should recognize things past what your eye sees. " I constantly asked him where in the house was filthy but he refuses to inform me and continued to yell.He claims that I always cleaned after he did, when I know is false because he just admitted to saying that he hasn't been cleaning. All the furniture and decorations in the house belonged to him, and he claims that we haven't been taking care of it.He states that he doesn't feel sorry for his need to be overly clean...even though he doesn't have OCD and he wasn't at all clean in the past. I know that it's because of his girlfriend, because that was the whole premise of his entire rant "My girlfriend doesn't want to come because of how messy you guys are". Later, I texted him saying that I wasn't responsible for making his girlfriend happy and if anything, it's his responsibility to keep her happy, not me. Told him that she was an amazing person and that I'm glad they're together, but I wasn't going to villainized because I didn't clean the entire first floor for her.Now, he says that we're no longer friends (I'm pretty sure it's because what I said) and postponed the discussion. He didn't feel the need to explain himself afterwards. He's contemplating about moving out and I hope that he's willing to pay till spring. Like an idiot, I didn't make them sign a roommate agreement because I trusted them so much. He's a smart guy, so I'm hoping that he's willing to negotiate.This whole situation is new to me so I could really use some advice on how to proceed from here. Also, was I insensitive? An honest perspective would be greatly appreciated as well. Thank you! via /r/Advice https://ift.tt/34jYrFq