Having read the posts, the following is what I communicate.

Taste, opinions, and such aside, critically and artistically drama -- especially romantic love-like drama -- is able to ruin a scene or ruin a show or a play. We have seen it occur, and it does indeed apply to more genres than science fiction -- but science fiction (and drama) is the topic.

Regarding the definion of science fiction... It is and should be story, entertainment, etc., of fiction of science (including scientific theories, activity, imagination, space travel, war, etc.) where drama is included as necessary, but not dominant or in a position to ruin the very thing that is science fiction.

It has occurred and is possible, therefore the point of drama not ruining science fiction is valid.