Do you think if Jyn had lived she would have loved Luke? I think even though she was kind of a "tough exterior, hard shell" kind of character she would've loved the Hope she almost gave her life for--I think she'd be at Luke's side always, willing to follow him to any battle
YES. EVERYONE LOVES LUKE.
But also cause Jyn would be so grateful for someone like Luke. Even though they didn't get too close on screen, she seemed to care a lot for Bodhi who was one of the softer individuals in the group. So she'd see Luke as her little brother and an inspiration and will protect him with her life.
Jyn also is incredibly kind, much like Luke. For her, though, she loves Hope but it is almost like a curse that has burned her so many times so it has made her distrustful and angry...but she still can't help it. She hopes and loves hard. But she's been hurt so much she tries to hide it.
They'd also be close with their type of scruffy men with grumpy attitudes that hide hearts of gold and awkward personalities.
Luke and Jyn: (looking at Din and Cassian) Nice.
Din and Cassian: (looking at Luke and Jyn, exhausted) I see they have you whipped as well.