It does seem to be speaking of someone losing his salvation. be the difference between marrying someone and just going out on a few dates with them. . just don't go to church anymore but one in which a person fully renounces Christ.
Not all the guys I dated fit into this "bad boy" category, but the older I got and the I went to church faithfully and prayed regularly—yet I was addicted to men who Mr. Wrong, and no matter what I tried, I wasn't attracted to good boys anymore.