nedarim 20 - living with opposite emotions

The Jewish soul is comfortable with opposite emotions. For example, Love of G-d vs Fear of G-d. How can you love and fear at the same time??? the Pasuk says וגילו ברעדה, which translates something like rejoice in fear, how do you do that??? but we do.
Any time you take an idea to its depth in Judaism you will find opposites. In our Daf alone you have it twice. 1st, you have the concept of needing to have shame as a sign for Fear of G-d. on the other hand, as the Maharsha points out, the Gemara in Beitza says that Jews are brazen and that is why we can accept the Torah.
והשני - בדין של "כפאו שד" מקורו מסוגיא דידן, עכ"ז בגוף הסוגיא למדנו שיש דין מספרת עם בעלה, דהיינו שלצורך מותר ומוצרך ועיין היטיב ברא"ש. ודי בזה
It is famous that in creation itself this paradox exist. G-d created a differentiated world that is One which in the world of philosophy makes no sense, if we are a part of G-d himself, how can we be we and He be He??? How about Predestination and Free-will. Is the world created with Kindness (חסד) or strict justice (דין).
The point being that in my humble opinion the Gemara teaches this concept in marriage because in depth this concept is in the essence of our relationship to G-d. Marriage, as we learn in Shir Hashirim, is the example in this world to our relationship to G-d.