Just my thot, Could Nisha come for the wed & let kunal or siddhi know what happened...which will pave way for Kunal to face Thakral, in case he tries to create scene at the wed...
Also think Kunal will not hide the fact with Seema or Vikram, bec he was shown uncomfortable with the hiding thing.
Positive thinking though...Wish everything happens for good, right?š