[ChuckMcM]

100% agree with this, and add the following caveat.

Don't be surprised if your partner "switches gears" and tries to convince you that you are being unreasonable and selfish and screwing up the possible deal (or future deal) with these "demands." Sometimes people present as friends only because it doesn't cost them to do so, but change their presentation when being asked to reduce the amount of money they may have been counting on receiving.

Be ready for that to happen and understand that your actions are not "ruining a friendship" they are merely illuminating that the friendship was an illusion to begin with.