The real muslim , knows that the  relationship are by AllahCC, and can not do act or brokeeach others. Must care about responsalilities done, making in safe those who are in your realtion. The will by Allahcc doe not break if have respect to AllahCC, bcs of it is soul matter, and AllahCC will ask what you did .
those advise wrong , to promote separation, speak not good words for to humilaty others, wwhat are in needing, will be humilited by ALlahCC .

"O Mankind, we created you from a single pair of a male and a female, and made you in to tribes and nations so that you may know each other (not that you despise each other). Verily, the most honoured of you in the sight of Allah is he who is most righteous of you." (Al-Quran, Chapter 49, Verse 13)
 those who are too arrogant to serve me will surely find themselves humiliated in Hell"
"A muslim believer is a mirror reflection of another muslim, A believer is a brother to another believer, he safeguards him from destruction and prevents his annihilation during his absence"