For Marriage
The appearance of everything is not its reality. Get it out of your mind; it is not a suitable case at all.
For Business / Deal
You will fall into Haram and suffer great loss; its inward reality differs from its outward appearance.
وَالَّذِينَ يُنفِقُونَ أَمْوَالَهُمْ رِئَاءَ النَّاسِ وَلَا يُؤْمِنُونَ بِاللَّهِ وَلَا بِالْيَوْمِ الْآخِرِ ۗ وَمَن يَكُنِ الشَّيْطَانُ لَهُ قَرِينًا فَسَاءَ قَرِينًا
Waallatheena yunfiqoona amwalahum riaa alnnasi wala yuminoona biAllahi wala bialyawmi alakhiri waman yakuni alshshaytanu lahu qareenan fasaa qareenan
Not those who spend of their substance, to be seen of men, but have no faith in Allah and the Last Day: If any take the Evil One for their intimate, what a dreadful intimate he is!