Though it will greatly distort one’s relationship to others in those who fully consent (e.g. are not repentant), I believe that a sin such as this will mainly cause a great sense of shame and unworthiness in a person who in spite of their weakness are trying to be close to the Lord. Being unworthy of God’s mercy is the greatest lie of the father of lies. Satan is continuously telling you that you can’t win this battle, but the truth is the battle is already won through God’s mercy. Run to Him despite all that you perceive as wicked in you. This humility in a sinner pleases the Lord greatly. The greater the sin, the greater the merciful love He will bestow on you through the sacrament of reconciliation. If you’re repentant, your sin is as nothing compared to His mercy. You can’t do this on your own, so don’t let your pride get in the way. You will need God’s grace, which is there for the asking.
Remember, to light up the chamber of your soul you must flip on the light, not try to suck out the darkness. Get rid of the darkness by turning on the light of God’s merciful love. Immerse yourself in holy books, pray the Chaplet of Mercy or the Rosary, and fast if possible. Avoid occasions that lead you into temptation, such as inappropriate television viewing or idle time, and partake in the sacraments frequently.
Why does God “lead us into temptation”? So He can lead us out of pride and into humility, and through humility into holiness. Say: “Lord, have mercy on me, a sinner. I’m weak and I cannot resist these temptations without your grace. My only hope is in your merciful love”.
You are not alone. I will pray for you.