TBH, I really like that Astarion draws a line there, where most characters won't. It's good for him to set boundaries, and I don't like when the game bends itself to cave to the player so they can get away with whatever they want rather than setting limitations- and there's also a dialogue that's now triggerable where, when confronted again about being with an illithid, he says "Even I have my limits, darling"
I would have completely agreed with you and would have said the same before Patch 5, but since even Lae'Zel is now willing to romance an Illithid Tav it just feels like a statement from Larian.
I mean, out of all the companions, if Spawn has such limits, then so should Lae'Zel. At least.
If they make Lae'Zel draw the line here too, then I agree that Spawn should too.
But as it currently exists in canon, it just feels unfair to me.
