Like an old married couple

[Ratman77]

Personally I think its way too late for Shenny, some may disagree but I think they have spoiled it now.

Well, I understand your argument, and also why you see that in this way.
But, I think it is perhaps not too late. I know, at the moment it maybe does not look so, but we should hold in mind, that it is a TV-show. Its not the reality, what means that the writers have thousand ways to make turns- unimportant how realistic it is or not.
One example (please do not kill me for I repeat this ):  ”That seventies show”
(I have looked this series for two reasons. I like Mila Kunis, and because it has helped to cheer up my mother when she was in cancer-therapy).
In the second season-when “Fez” had his first girlfriend “Patty”, “Jackie” was jealous. “Donna” told her that she was in love with “Fez”, what “Jackie” then also admited . Only one episode later “Patty” was vanished without a reason, and with “Jackies” love-admission the writers made five(!) years long nothing.
In the last season-after they had finished all the other points on their relationship-agenda- they brought it out again and ended the series (well, this plot-point) with that “Jackie” and “Fez” became a pair.
Yes, I know. The comparison is lagging, but it shows that by a series it lies in the hands of the authors/producers, that plans can be changed……and that nothing is really “inescapably”. The only what I want to say, is that we all should not despair. Nothing is impossible, and in the case from “TBBT” (where-how you written- the producers are aware about this “treasure”)  it would have to go with the devil if they really sometime do not do something with “IT”.

“There are always possibilities”
                                  Mister Spock

(Sheldon Cooper -the original one-from season 1-3- would certainly agree).

Chins up, and greetings from Germany!

P.S.: If you really want to kill me-with words- for the boredom of my argumentations,….please do it softly.