I could tolerate a significant other that I might need to lie to (it would mean they were somewhat irrational, but most people are and I'm not an attractive mate anyway so I can't afford to be picky), but not one who would need to lie to me. (I don't like being lied to, don't like self-delusion, and would have more of a sense of power and control if my spouse was honest with me but not the other way around- with a matter such as a spouse's self-delusions, I would be unlikely to be caught and would suffer less repurcussions anyway)