The Church gathers around the world to celebrate the central message of Christianity: Love. It is significant that Christianity does not celebrate any Sacred Brain or Sacred Hands. But it comes together to celebrate the great symbol and citadel of love: Sacred Heart.
Commit yourself this day to prayer for the person you struggle with the most. This prayer will most likely not change your love for them over night, but if you commit to this form of prayer every day, over time God will slowly change your heart and free you of the burden of anger and hurt that may keep you from the love He wants you to have toward all people.
Think, today, about those whom God has put in your life to love. This would especially apply to family members and especially to spouses. How attentive are you to every small act of kindness and compassion?