A tale of never halves

Sam: "I've been saying that I don't want to lose you, but why are you so determined to end our relationship without giving me a chance to try and fix things?"
Emma: "Why should I give you a chance? You've never been able to make me happy. I've given you all the reasons why we can't get back together, and I'm done trying."
Sam: "You never had to change me, I just had to listen more closely and really understand what you were saying. And as for finding ourselves, I found myself through you. We have plenty of time to explore and discover ourselves outside of this relationship. Who says we can only find ourselves when we're single?"
Emma: "I don't care about finding ourselves or making things work. I just want to be happy, and I don't think that's possible with you. I'm done trying.
What's the color of venus’s sun?