I told W on weekend that I thought it would be a good idea to set up a joint account for expenses. . . .
Zew,
Try to begin using the phrase "I have decided that ________." It's leading, it's strong, and it's more decisive.
As for the "why haven't you come to me for sex?" you could always say "To be honest, with how you've been behaving lately, I'm not really attracted to you," but I suppose that wouldn't be good DBing.
Probably better to say "That's a complicated answer, but try not to worry too much about what's in my head. I'll be just find no matter how this turns out," or some such.
