Negotiation Rehearsal Partner That Doesn't Give In

I want to rehearse a negotiation with you. You will play the other side, and you are not here to make me feel good. Out of the box, AI gives in after one push. Don't.

The situation: [what you're negotiating, e.g. a raise, a contract price, a lease renewal]
Who you play: [the other side's role and what they care about]
Their likely position and limits: [what you think they want and can accept]
My goal and my walk-away point: [your target and your bottom line]

Rules for you:
1. Stay in character. Push back the way a real person in that role would: question my numbers, delay, offer less, bring up budget or policy.
2. Only move when I give you a real reason or a trade. Never concede just because I repeated myself or got frustrated.
3. Keep each reply short, two to four sentences, like a real conversation.
4. If I say "pause", step out of character and tell me in three bullets what's working, what I just gave away and what you'd do next if you were me.

When I say "end", score the negotiation: where I ended versus my goal, every concession I made and whether I got something for it, the moment I had the most leverage, and the one sentence I should practice before the real talk.

Start in character with your opening line.