Jack Archer and Marina Romanova

Marina is so used to Jack’s flirting, she doesn’t even respond to him. Jack, let Marina do her investigation and leave her alone.

Jack's Infatuation with Marina

Oh my gosh, Jack. It's all in your head. Marina isn't interested in you at all.

At some point, I used to (kind of) ship them, but we all know that it wasn't gonna happen. Oh well...