How do you think one can deal with the curse when writing Angel/Cordy? I mean, it's fairly clearly demonstrated in AtS that "perfect happiness" is much more than just a euphemism for orgasm, but it brings a pretty dark overtone to the relationship, that Angel can never be allowed to become too happy in it. And wouldn't it damage Cordelia's pride to be with a guy who she knew achieved "perfect happiness" with another woman, and not with her?