Archidemon Baal wont fight me

[Pluvius]

There was a previous thread about this.
Yes i have the quest from the mehgard chief engineer to take the key so he can seal the gate.
I got 1 key from xeona after a battle and some flirting.
The other key is from Baal but he keeps banishing me.
Ive done all the quests actually.This is the only one i cant do.Up to the end of the game,before fighting Haas,I still haf this quest remaining.
i didnt marry xeona,and stucked to my elf queen.I dont think marrying xeona is a requirement to fight baal.
I chose every option available to fight baal,kept loading the game and try new option but kept getting banished.
any idea?