Well SH obviously gets punished for ever rejecting any of shars teachings growing up. As far as I'm aware, she prohibited love. But it's not so much that it's a shar vs selunite thing. For all we know some Selunites are also open to casual sex. But they aren't going to be punished for choosing either way.
But it makes sense that SH would want to explore this new kind of relationship (a monogamous one) that has been kept from her, due to how she was raised.
