Negotiating a price is never offensive to me. I have clients that ask for discounts everyday, does not bother me and I do not skimp on service. i decided I cannot control what others do, so I am not offended when asked for a discount. I can only control my repsonse which is "No." Very simple for me.
This lady is obviously very disorganized, a price structure should be solid or she will get negotiation requests.
I negotiate prices with people all the time, just smart business IMHO, I never have bartered rates with providers, but I have with plumbers, computer people, mechanics, lawyers, roofers, caterers, limo services, etc. etc. etc. Even when I did not get the discount no one has ever skimped on service due to my asking for a reduction.
You women make very good money, apply for some jobs in the market place and see how often you find one paying you $1000 per day or more. Nothing wrong with making good money and being paid a fair price for your services, but to request others to not barter just seems like an unreasonable request to me, as I know I cannot control what others do, that simple for me.
I would never see this lady, too disorganized and cockiness i snot attractive to me. Shwe needs to remeber "I am the customer" not her. But some men like that and I do not judge, have fun and play safe!