It's probably worth linking to this thread where this is being discussed:
https://forums.larian.com/ubbthreads.php?ubb=showflat&Number=877931.Personally, I think it's hard to answer this question yet as it feels like there are bugs in some of the romance/sex flag settings. I've answered "no" because I'm certainly not (yet) seeing the sort of companion behaviour that some other players are reporting in the linked thread in my own playthrough, but I'd probably be voting yes if I were getting hit on repeatedly by companions whether or not I'd shown any interest in them.
