help i stuck can't do melody house quest

[Kenj]

I accept Jiuli tribe quest to send letter to melody house, then I go to melody house and the letter automatically register. Melody house ask me to go back to talk to Miao Muli the tribe leader.
The problem is that I already marry Miao Caidie before that so the tribe hate me, and I can't talk to him. Now I can't do either quest from both sides,
It's so annoying, the letter quest should have been gone when the tribe kick me out. Is there a way to get out of this situation :((

[HoHoHO]

I don't think there's a way to undo it if you accepted the jiuli quest. You can see if there's an old auto-save game.