The TM needs to take a chill pill rather than being impulsive. You are doing the same mistake again and again. Once you blindly believed Ms Ray and now serendipty without any confirmation. You need to show your proof before pointing finger at someone. It's not sensible to drag serendipty into this either, maybe she was joking or whatever. She is not obliged to show anything because she just posted a comment.
And, it's ridiculous to believe those spoilers beforehand. When Mani entered on the show , many spoilers were saying Ishita will get married to him. Even when Subbu entered, they said he would replace Raman and he would be the new man in Ishita's life. Nothing had happened. No one is interested to watch Shagun's renewed love life and makers know it. Besides, Shagun is the ultimate negative character on the show and she would always trouble IshRa. And, you don't need any sources to confirm that.