That shows how the diplomacy actually is messed up: They are asking for a status quo ante (I suppose that all these towns had been Makedonian before the war). That would be historical and acceptable, at least between Hellenic factions, as long as they would had admitted their defeat in any way. For example they should have offered the money, an alliance, to attack your enemies, something like that and not demanded anything.

So that is either messed up in a way that the AI can't recognize who is winning or always choses the wrong option, or the game waits for you to negociate by offering, for example, "ceasefire, trade rights and the towns save for Athenai, Korinthos and Chalkis".