The following is an article from my reading.
1] To be capable of real love means becoming mature, with realistic expectations of the other person. It means accepting responsibility for our own happiness or unhappiness, and neither expecting the other person to make us happy nor blaming that person for our bad moods and frustrations.
2] Mature lovers -- lovers who love unconditionally -- develop a knack for side- stepping resentment and focusing on the good they see in one another. They have evolved to a higher level of understanding, one that transcends taking notice of the imperfections of the other.
Maturity is the capacity to face unpleasantness, frustration, discomfort and defeat without complaint or collapse. Mature love partners know they can't have everything their own way. They are able to defer to circumstances, to other people - and to time, when necessary.
Mature love partners permit each other the freedom to pursue their individual interests and friends without restriction. This is when trust presents itself. Mature love allows this level of separateness to bring lovers closer together. In this scenario separateness is perceived as a bond, not a wedge. It encourages love partners to celebrate their own uniqueness.
3] We can come to realize that mature love equals loving yourself for being what you are, and likewise loving another person for who they are. When we can feel such unconditional no-matter-how-you-act love, we have learned what I call mature love. Mature love allows you fully to be yourself with your loved one.
Maturity is the ability to live up to the responsibilities of a love relationship, and this means being dependable. It means keeping your word; it means living in your relationship like your word really means something. Dependability equates with personal integrity. This means no withholds. It means saying what needs to be said, with love. Do you mean what you say? Do you say what you mean?
The world is filled with people who can't be counted on, people who never seem to come through in the clutches, people who break promises and substitute alibis for performance. They make excuses. They show up late - or not at all. They are confused and disorganized. Their lives are a chaotic maze of unfinished business and uncommitted relationships. Oh, what a tangled web we weave.
4] Mature love offers us our most profound opportunity for regaining wholeness - not because our partners will fill all of our emptiness, but because we can use the embrace of a loving relationship to nurture ourselves toward greater maturation and ripening.
Maturity is the ability to make a decision and stand by it. Immature people spend their lives exploring endless possibilities and then do nothing. Action requires courage. There is no maturity without courage.
Maturity is the ability to harness your abilities and your energies and to do more than is expected in your relationships. The mature person refuses to settle for mediocrity. They would rather aim high and miss the mark than aim low and hit it.