The only way to measure someone's "personal relationship with Christ" is to measure their relationship to "neighbor". The parable of the "Good" Samaritan (Luke 10:25-37) is an excellent guide to the meanings of both "neighbor" and "love". Are the person's actions of "love" constructive and at least somewhat costly? Is the "neighbor" who is receiving that costly, constructive love someone who is outside the circles of family and friendship (or even citizenship)? A careful reading of the parable tells us that Jesus sees "love of neighbor" and "love of God" as the same thing.
