What is the point one should gv up a relation, no matter how much u love that person.?

Once we think we found true love all we do is to protect wid all our mind and soul and make it work, even ignoring a non-contributory and inflexible attitude of our partner, bec who wants to break? There's one time here that ego intervenes to save our soul frm the humiliation. when's that clssic moment when heart saya " AB BAS!!!!"?