"What did you expect Jon? Just sitting around while you talk about going south to meet with Daenerys Targaryen, Queen of Dragons? The moment you step in front of her she will roast you alive. I can't stand the thought! Don't go please! Think about your people, your home. They need you here. You talk about the night king and the war to come but you are abandoning us for a stupid quest ?"
"Is that what you think I'm doing Sansa? I took back the north for you. For you. Because you wanted it. Now don't you dare thinking for a minute that heading off to Dragonstone is not an attempt to save our home. The north is my home too and I will never stop fighting for it. We promised to trust each other but here we are again" he exasperated and turned his back storming to the door.
" Why are we doing this?" Her voice barely reached his ears stopping him with his hand to the knob. " I wanted to say goodbye to you but I... all I can think of is you leaving. It's such a great risk. What if something bad happens to you? What about me then? I was alone for so long, away from my home my family and the moment I finally got some of it back I am losing it again." She faced him. Walked slowly to him and grabbed his hands, turning him towards her touching her forehead to his. "Just promise me you'll come back. Promise me to the Old Gods and the New ones."
He kissed her forehead "I'll promise to anything you want. I'll always come back to you".