"There is no fear in love. But perfect love drives out fear, because fear has to do with punishment. The one who fears is not made perfect in love." -1 John 4:18

(This verse is exactly what I needed right now. Isn't it strange and wonderful how God works like that? God will send you whatever you need when you need it, if you ask for it in his name.)
But anyway, do not fear for your relationship, whether it be with your significant other, a best friend, or even a family member, DO NOT FEAR. If your relationship is falling apart, don't worry or end the relationship. Just pray that God will give you the strength to continue. And if your relationship does come to an end, just ask God for UNDERSTANDING. Pain is okay as long as you understand it. Don't fear, just pray.