Dear Simply_Leaf:

First of all, let me start by saying, you are disgusting.

Secondly, by your defination, there should be technically something in between 情人 and 二奶, like 张斌's girl friend and Governor McGreevey's boy friend, who are economically and emotionally independent but use the relationship for other things like more money, more fame or career advancement. etc.

Thirdly, more often than not, the line is vague. and in my personal opionion, the above mentioned group is more inclusive than your strictly QR and EN distinction.

And finally, let me finish by saying, Simply_leaf, you are disgusting. You are more disgusting today than you were yesterday, and you were more disgusting yesterday than you were the day before yesterday. Please feel free to extrapolate, and I don't think, although I hope, the trend will stop here.

And no, I'm NOT trying to hit on you, less so than I was NOT trying to hit on LJX, for obvious reasons.