This is a pretty wild claim, but if it's true then it's the best argument for a treaty I've heard. If all they want is access to the sea, no need to continue warring over Crimea or Donbas, just sign another lease to the port

Though I've repeatedly heard their justifications for annexing Donetsk, Kherson, Luhansk, and Zaporizhzhia, so I don't think anyone has any reason to believe they'd leave if they were just allowed to "protect their naval base"

I'm getting the feeling this is more of a "vibes" conversation though, sorry for throwing off the vibes