Illyria's romance differs from other NPC's in that it isn't so much a romance as a relationship, and a romance would be rather PC-oriented, in that Illyria wouldn't pursue it. Illyria feels that right now having a relationship with the PC would not be beneficial for either of them, and tells <CHARNAME>. She will respond to flirts and stuff kindly, but won't flirt back.


(Neutral Good path)
Later in SoA and in ToB, if the requirements for a romance are met and the PC suitable, she realises she does indeed have feelings for him, and through a series of talks this comes out in the open, much to her embarrassment. She comissions an artist to create a ring, and through various means she and some friends enchant it, giving it magical properties and aids. These magical properties vary with each NPC who helps her create it, and how far her friendship/relationship with them is.

In the end of SoA, in Suldanessellar, she finally tells the PC that she loves him, and gives him the ring, which is by now a rather powerful aid. She thanks the PC profusely for his aid, and gives him a kiss, and tells him that she has chosen to stay with him, despite the incredible dangers he may face because he is a Bhaalspawn.

In ToB, she realises that it is not simply her who is in love with the PC - L'Sirr has similar feelings of affection for him, and the two finally realise that no matter what happens they will always be there for each other, like it or not.


(Neutral Path)
After L'Sirr was torn from Illyria and her soul was damaged beyond repair, she realises that she is different from everyone else, and goes into a slight depression, becoming withdrawn, bitter and sullen, and paranoia occasionally besets her senses. Talking with the PC calms her, and she thinks that for some reason he completes her - she speculates that perhaps it is because he has lost his soul, and she has sort of lost hers.
She realises she does have feelings for the PC, but thinks that he is too good for her, so she tries to bury her feelings for him. She becomes even more withdrawn, and unless the PC steps in at this point and convinces her that he also has feelings for her and that she is worthy of him, she will become even more withdrawn and depressed, which eventually leads to her leaving. 
If the PC manages to convince her of his affections, she becomes more balanced, and eventually decides to protect the forest.

In the end of SoA, in Suldannessellar, she reminisces about what has happened, and expresses her surprise that she and the PC are still alive. She gives him an amulet, similar to the NG path, which has been enchanted by her own magic.

In ToB, her mind begins to teeter on the edge of sanity, and she begins to see things which aren't there, and becomes very dependent on the PC, much like Minsc is dependent on Boo. Towards the end of ToB, she becomes very clingy, and she admits to the PC that she knows she is going insane, and wishes it were otherwise so she could spend more time with him. She leaves the PC's side, and travels back to Tethyr forest, where she dwells for 2 years before going completely mad. She is taken to Spellhold, and there she commits suicide.
