Quite frankly, she is the one Forsaken who has been totally upfront about her overall interest in him and I can understand her, because I would most likely be the same way. She has no interest in him because she was too busy trying to A) survive and B) become Nae'blis.

I seriously think her strategy didn't involve him, and she basically had a hands off approach allowing Moghedien, Mesaana, Rahvin, Demandred, Sammael, Lanfear and Ishamael/Moridin to get winnowed out trying to capture or turn him.