Good luck to you. I am married to an A who says he quit drinking a month ago, but I have very good reason to believe he hasn't. This is the 4th time in a little over a year he has quit and relapsed.
Although you came here looking for help and support, you have actually given me a gift. You've given me a glimpse into what will surely be my future if I stay in this marriage. He's proven time and again that he is not truly committed to sobriety, and every time he "slips up" he has accused me of creating the stress in his life that caused it. I, too, am sleeping in the guest room.
I am so sorry for your pain and disappointment. I hope this resolves for you soon and that you find peace in whatever decision you make. I'm glad you found SR, and I believe you will find the support you find here to be invaluable as you move forward. As different as we all are as individuals, our stories are strikingly similar. The disease of alcoholism is very consistent.
((hugs))