PTV cannot show anything explicit..heck they can't show even blood is red.I think the makers wanted to keep a mystery regarding this night but because of the backlash they had to show it and edit out portions which made Murti look bad.(hence hayas dialogue)
Meerabs ego won't let her accept that she loves murtasim and slept with him after accusing him of cheating.
Murtasim is hurt because meerab willingly sleeping with him out of love would be his victory but here he lost as it was moment of weakness .He doesn't know meerab loves him.This is why he will take the blame and mb will slap him.
She will punish herself....and he will pine away for her 
Her ego has to loose for murtasims love to win
NM is such a shitty writer..this could have been a great story but madam only read half the romantic novels without understanding the meaning.
For yumhaj/meerasim sake I hope the have a clear dialogue post separation and indicate consent properly because for me there was consent
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