what makes a relationship work?

Respect and Communication

If he respects the woman he is committed to enough, he won't cheat on her, however much attracted he is to other women.
And the same is true for the woman with a wandering eye in a relationship.

Communication helps them with honesty and expressing opinions, desires, emotions etc.

This is probably the most straightforward answer I can think of right now. Hope this helps.

Being in a committed relationship has nothing to do with your ability to identify beauty in everything around you. What you do after you identify it is what defines you and your value system (or lack thereof).

If you can make your man bare his soul to you and make him tell you his deepest fear, his most hidden insecurities, he is bound to commit to you faithfully.