In Islam there is a Hadith that states marriage is half of the Din. "When a man marries, he has fulfilled half of his religion."
A warm relationship can trump cold facts any day.
If there is another person or group that does not share your views you can always fall back into the support system of your group to strengthen and support your ideology. That is why the internet has been a threat to certain groups because it is able to work around the barriers and buffers of local community ideology.
"To fully understand human relationships, we must first understand that human nature is a particular, specialized version of a more general primate nature."
Author Dario Maestripieri