It does smack just a little of "oh there's nothing wrong with that so long as I don't know about it". Which implies after all that people do find something wrong with this sort of relationship still, which is a shame. Let's hope that after a while such storylines become less noteworthy -- that it will just be seen as part and parcel of modern life, and nobody will care. In the meantime, showing such storylines and relationships is surely important for those gay people still in the closet and still facing uncertainty about how their family and friends will react.