As William Turner Jr. would say: "It's only a matter of leverage". There should be a way to put so much pressure on her that she would eventually listen to the main character and could be turned into their cause just like it is possible with Khaga. She deserves at least the same treatment.
I would welcome more possibilities with a character who has good potential and a very good voice acting on top of that.
Yes, she has the same problem as our party, she just doesn't know yet. When he finds out, he will be the perfect evil companion and a good friend, and we will learn more about her. I love the fact that she is evil but not absolute evil and she has a deep personal drama in her backstory. Most likely, she can be really good with us if she will trust and respect us over time, and we will show that we will not betray her for profit as is customary in drow Lolth society
Thanks to Larian for Baldurs Gate 3 and the reaction to player feedback