Let us not lose sight of the essence of EMA, which it purely the writers' fault for driving us up the wall and diverting. But I believe that the writers will surely bring Kalpi and Raghav to marry but in a while. So let us keep watching. I think we need to read between the lines. Notice they focused on the wedding invitiation. Then Raghav's character was not supposed to be weak (and hey writers we told you not to mess with the characters. They are good as they are unless you are making them better. Don't weaken them, ok?), so let's see what is going on here.
Then if this is real (what happened last night) then how does the relationship between Raghav and Sammy change; between Sammy's parents; between Kamla and the others; what about Kalpi working in Raghav's office? There are many, many more interesting things to this story so let us give EMA a chance for a while longer. I am positive we will see Raghav and Kalpi together and even more romantic scenes between them even if there is some distance. Their love would grow.
Now, viewers please don't disrespect Aashish. I think someone is trying to mess with him. Aashish is a nice guy so don't create ruckus and trouble by claiming things about him. He is a super cool guy. Very nice.