Paras is the kind of cocky guy who will not concede defeat on national television. His reputation, within and outside the house is more important to him than relationships which can be sorted out later.
That is why he was not able to digest the critical feedback given by his own mother.
Look at the persona he has created in the show. The dude with everything he wants, be it clothes, perfumes or girls fighting over him. This illusion of an image gives him the right to show another like Asim, who is new to the industry, his place. This persona is also fragile, so he is willing to go to the extent of arguing with Salman and proving Akansha a liar to maintain it.
He also understands that he is charming enough to convince and win over people outside the house. That's the one thing which is working for him here, his way with the words and people.
But well, he detroyed his own game by looking like a fake. Had he shown his real emotions and accepted the past mistakes, he could have done so much better.