I must admit that even after all the books and lore i read, that i am not 100% sure how a seldarine drow would behave. Some dialogue options seem unfitting for a race that tries to get rid of it's heritage.
Reading Drizzt and the War of the Spider Queen books shows most Drow as either outright evil and racist towards anything else Drow (or mighty enough to threaten them) or as uncaring, self-centered Individuals that hardly respect anyone else and think them "beneath" themselves.
So the welcome in the grove should be much more guarded at first. I would even go for a persuasion/deception check to make the conversation go in a drows favor (If we get Duergar the same applies).
If you fail those checks the whole grove should be on high alert when talking to you and only allow you in because you helped. This can get better by helping ofc.
