It's terrible what happened to your uncle but you shouldn't get offended by this. It's a television show. In fact, I've seen
many other Bollywood movies and Indian serials where suicide is shown in a comical way, this is certainly not the first time a character has done this.
And its not like this show ever pretended to give out a good social message. This is the same show that tried to imply that it is "romantic" for a guy to manhandle a young girl and make her hands bruised and bleeding. That could be highly offensive to someone who's experienced domestic abuse in real life.
A suggestion: remember that this is just a TV serial and Khushi is just a character. Don't take things so literally and seriously. I'm willing to forget the entire last week happened so that I can enjoy the show. If I "hated" either the characters of Arnav or Khushi, I wouldn't be able to enjoy this show. So why bother making sense of the CVs mistakes? I'm going to continue loving the characters (mostly due to the actors) and watching the show without taking it too seriously. It's just entertainment.