Let me get this straight - I left you alone for like five seconds so I could go liberate my homeworld and you went and hooked up with the new Dax?!
IT WAS NOT A GOOD DECISION
A lot of hasty decisions are made when you think you’re going to die. Some are bound to be bad ones, especially during ‘I wanna feel alive and my boyfriend might be dead’ phases.
In the expanded-verse, Dax thought so, and ends up leaving him and going command.
She saw the writing on the wall when Julian started getting letters from Cardassia and every time he opened one he would go hide away in his study all day to read it over and over again and then mope for the rest of the week.
Not to mention the fact that ‘Elim’ doesn’t even sound like ‘Ezri,’ the ‘e’ sounds are different, so blurting it out during sex was not a suave thing to do.
Then there’s that awkward moment he was dating both at the same time and called out the other’s name in bed.