"May you always be filled with the fruit of your salvation—the righteous character produced in your life by Jesus Christ—for this will bring much glory and praise to God."
The sole purpose of our existence on this planet is to make God look good, to bring Him glory. We can do that by living lives characterized by the "fruit of our salvation," like self-control and biblical love. If you're in a relationship and you know that you're not doing what God wants you to do, you only have two options (if you really want to please Him): either fix the problem, or get out of the relationship.
Obviously, since you really care about the guy, your first choice would be to "fix the problem." But here comes the hard part, sis. When physical intimacy is the thing that is keeping you from glorifying God, it's next to impossible to stop messing around for good. Once you've gone there, even if you stop for a while, eventually you'll fall right back into the same sin. I've experienced it myself, and I've watched friend after friend and little sis after little sis fall into the same pattern. The problem is that once you've crossed those lines, it becomes way too easy to cross them again. You've already experienced this.
Of course, when you're in the middle of a physically active relationship, it's so hard to think of breaking things off! It takes the courage of a lion and the faith of a saint, but the best advice I can give you is to get out of the relationship, sis. I don't say that lightly, because I know full well how much it will hurt. But I also know that there are far worse consequences if you continue to live in sin. Eventually God will stop knocking at the door of your heart, and your conscience will get hardened to the sin. Then it's ten times harder to do the right thing. Also, when you're in the middle of a physically relationship, sometimes you're blinded by the intimacy, and can't see that there are other unhealthy things going on in the relationship. (Sometimes those unhealthy characteristics are what caused you to fall into sin in the first place.) Often, you'll only be able to see those things once you've distanced yourself from the relationship a while.
God wants more for you than to be in a relationship that breaks His heart, sis. As hard as it would be, if you choose to obey Him on this and turn from sin, He'll bless you for trusting Him enough to give up the person you care about most in order to honor the One who cares most about you.
I hope that helps, sis. I'll continue to pray for you as you make this difficult decision.
Love,
