Be glad it's a computer player, if I had you down to two cities and sueing for peace . . . I'd honestly assume you were on your last leg and needed a moment to renew your defenses. The only way I'd accept the peace is if I also had need of a breather. Say to build more troops, upgrade and heal my current armies, or fight someone more threatening on my other border.
Even then I'd certainly ask for all your gold, a city, or any interesting technologies you might have that I was lacking.