When my husband came back from one week out of town trip, I noticed that he was not in a good mood, maybe because he was so tired due to his super busy schedule. Since I missed him so much, I had my expectations. Then I realized, that his short temper attitude did not change, I just learned to manage it in a way that I know that I should not react immediately to his short temper and always remind myself that tough love is stil love.
Relationship becomes better not because your partner have changed the way you want him to be but you have changed on how to react to his attitudes and his flaws. Remember to love his imperfections and always look on the intentions