Question: Why and how did Rhaegar Targaryen take Lyanna Stark? The answer you choose will decide the story, and what happens to Lyanna.
NOTE - In all cases, Jon Snow is born.
_____________________
Choice 1 - Rhaegar Targaryen was obsessed with prophecy, and saw Lyanna as a strong candidate to give him his third dragon. He really kidnapped her to grape, but things won't go Rhaegar's way.
Effects of this choice - Lyanna won't be seen as some dumb girl. MC and Lyanna will become great bedroom partners, and great friends. [Pretty much like what they are right now.]
_____________________
Choice 2 - Rhaegar Targaryen was obsessed, but somehow seduced Lyanna with his charm. He really got married with her in secrecy, and they made love.
Effects of this choice - Since Lyanna is dumb girl who got swayed by the smooth prince, Wylis(MC), won't trust her that well. He won't be very attracted towards her, and maybe just shag her here and there. They'll be friends, but nothing special. No joking around, or banter.
_____________________
Choice 3 - Rhaegar Targaryen was obsessed, but somehow seduced Lyanna with his charm. He really got married with her in secrecy, and they made love. BUT SHE DIES!
Effects of this choice - Lyanna dies. MC takes Jon Snow with him as his adopted kid, rather than Ned taking him in as a bastard.