Mbappe and PSG drama has been lingering and it may continue this way and by next season we might still see Mbappe in the PSG team. Mbappe is truly no longer interested in staying in PSG and also PSG is no longer comfortable with PSG presence.
What the two parties need is a landing conclusion and resolution but if PSG does not force it, that agreement will be delayed. Mbappe is so much self centred about his career and ambition than anyone's else.
I think PSG are too selfish and possible because their selfishness means they will lose Mbappe next season without getting anything, even though if PSG want to let Mbappe go this season they can get fresh funds to be able to bring in other players.
Sooner or later, Mbappe will definitely leave PSG and start his career with his new team, and I'm sure Mbappe really wants to join the Real Madrid team because it is possible for Mbappe to achieve everything in his football career with the Real Madrid team.
I don't understand what you mean by selfish here because looking at the conditions now it can actually be said that it is also natural if PSG tries to do what they are doing now with the ultimatum they gave Mbappe because they also want something that can be taken because the choice if you don't want to be at PSG then selling is a possible option for profit.
There is nothing wrong with that and I don't think it's selfishness because they are also businessmen who want profit. It would be great if they can still keep Mbappe but when they can't then there is no choice but to sell at a high price.