I will not tell him my timeframe. I agree with what you said about cake eating up until the last day. And that living apart would just let him be with OW without any guilt. As it is I have to hope that he feels a pang of remorse when I'm home with him and he leaves to see her. Perhaps not, but I'm sure he would not be thinking of me at all if he were living on his own.
Here's where I'm hung up. I've already told him that I do not find his affair acceptable and that I will not live in an open marriage. I suggested that if she is that important to him then perhaps we should reevaluate our living arrangements. That's an ultimatum I feel I now must follow through with otherwise there are no consequences for his actions. Am I looking at this wrong? Are there other options besides asking him to leave?
If you love somebody, set them free. http://tinyurl.com/2empx2g