Finding success in our relationships has a lot to do with our inner condition. If we have grown in intimacy with God, our life will begin to change for the good (not circumstantially necessarily but in terms of relationships and character). If we have made strides in our struggle with lying or anger or worry, we will find that our ability to be in relationship with others will be enhanced. But the opposite is also true: if we are still ruled by anger, for example, learning how to love, forgive, and serve others will be more challenging. Good trees bear good fruit, or the inside is what leads to the outside (Matthew 7:16-20).