From the TOS Series finale JANICE: The year we were together at Starfleet is the only time in my life I was alive. KIRK: I never stopped you from going on with your space work. JANICE: Your world of starship captains doesn't admit women. It isn't fair. KIRK: No, it isn't. And you punished and tortured me because of it. JANICE: I loved you. We could've roamed among the stars. But that could easily be interpreted in many ways. It could mean he can't be in a relationship while as captain.