I haven't been able to reproduce this after the patch so far. But when it first happened, there was at least couple of hours of playing between starting the romance and it bricking so it is impossible to retrace every step.
Right now Minthara has professed her undying yearning to be as one soul with me, then she is like "hey, sup". There is no special dialogue that indicates we are in a relationship like there was with the other companions. I am not sure what to think, or if it is safe to continue playing, but it doesn't feel right.
