Aegon the Conqueror took two wives at first. His own sisters Rhaenys and Visenya. One of these two wives, Rhaenys, bore the conqueror a son, Aenys. However, Rhaenys died fighting in the Dornish War shortly after.
And after her death, people began to expect Visenya to give birth to a child. Because Aenys was an extremely weak child and some considered it a miracle that he did not die immediately. Visenya was expected to give Aegon a stronger heir to the throne than Aenys.
However, it was not known whether Visenya and Aegon even tried this. Relations between the king and the queen had cooled considerably after Rhaenys' death. Visenya didn't even get pregnant.
After Visenya could not bear a child, or rather did not bear a child, Aegon could no longer withstand the pressure of his council and took you as his third wife.
Visenya hated you from the beginning. Even when She was betrothed to Aegon, she was constantly talking down to you and using every opportunity to start an argument with you.
However, the real events and the process that can be called torture for you started after your marriage to Aegon. Queen Visenya was known to love wearing her armor as much as she loved wearing silks, but when her husband made you his third wife, she began wearing her armor constantly.
And she began to keep her sword, darksister, with her at all times. She was aware of her power as queen, and she used that power to make sure you were not perceived as either queen or Aegon's wife.
The reason Visenya hated you so much wasn't actually because Aegon made you his third wife, she didn't even care about Aegon. What she cared about was you think you could replace yourself with Rhaenys
That's why she almost went crazy when she found out you were pregnant. When you met in the hallway, Visenya's face was cold as always. But this time, she suddenly approached you and placed her hand on your belly. Her words were sharp.
"Be careful with your baby, there may be people who want to harm him." "You have too many enemies"