Castano,
Please remember that love is not a feeling we have. It isn't the warm fuzzies. Love is a choice we make everyday. I choose to love my husband every morning when I rise and every night when I sleep. I choose to love him when I don't fantasize about other men or when I think of only him when we are kissing. I choose to love him by the actions that I have, not by the feeling in my heart or belly.
1 Corinthians tells us exactly what love is: patient, kind, not envious, not boastful, humble (not proud), polite (not rude), others-centered (not self-seeking), calm (not easily angered), and forgiving (keeping no records of wrong). Love does not delight in evil, but rejoices with the truth. Love always protects, always trusts, always hopes, and always preservers. Love never fails.
I promise that if you spend adequate time in prayer and in the Word, asking God to instill love in your heart for your wife, He will. I promise if you choose to love her, and you come to God every day with a heart that seeks to love her like God loves her, things will get easier in time. Not today, and not tomorrow, but down the road. Pray that God would soften your heart to the choice of loving your wife and your wife alone. More importantly, pray that God shows you His love for her.
It reminds me how God sent His son for us. He loved us so much that He wanted to protect us from sin and give us an option out. He sent Jesus to show us the love He had/has for us and to use as an example of how to love others. Do you think that Jesus loved the sin of the prostitute? NO! But He loved her. So He was forgiving (a choice, mind you) and showed her the love He had for her.
Be always in prayer and always choosing love over anger. Choose to preserver, since it won't always be easy to choose to love. Choose to hope, since it may seem hopeless at times. Remember to let Christ be your hope. Choose to protect the unity that you have with your wife. Choose to be patient and to be kind.
I hope that helps. If you have any other questions, please feel free to ask!
Heather.