“Mia, I think I know.” Dom said this low. He felt like a chasm was opening between them. Mia smiled at him, she didn’t see it yet. “I think I’ve figured it out.”
“Lay it on me then, big brother. What’s it going to take to make you happy?”
He leaned in, it was very important that he held her eyes right now. She needed to know that he was dead serious.
“Mia…” God, this was agonizing. “He made me happy.”
Source: Nothing but trouble – Chapter 1, by khaleesian – Fast and the Furious
Perfect canon-divergence in which they’re trying to live separate lives – until Dom decides to do something about it.