Saya & Taealha & Tanya - "Can we continue to be lovers?" 

During the long lonely years spent in the tower Saya and Taealha become lovers.
Unexpectedly Saya falls in love with Tanya and proposes to her.
Saya wants to push Taealha away- he even tortures her father.
Taealha is hurt, but she loves him still.
One day she tells Saya she's carrying his child, she wants to continue to be lovers and threatens him she'll kill Tanya.
In order to protect Tanya, Saya accepts.
This is something like a prequel to the video "Igutu" I'll post soon, here we can see why Taealha wants Tanya dead - because Taealha loves Saya and Tanya stole him away from her.