The issue here is he did knew Seerat ram away. Both Sahiba & Keerat did reveal it in front of him before the marriage. If he can give a benefit of doubt to Seerat then why not for Sahiba?
His pea-sized brain, nor does he reflect on why Sahiba told the truth before marriage when she could've kept quiet nor does he think why she's still taking pange with him and jeopardizing her chance to live in this so-called "luxury". Otherwise Manveer was ready to accept her had Sahiba accepted her condition.
He doesn't think at all, that is his problem🤪