St. Paul says that we should avoid causing scandal for the sake of the weeker breathern. In your example Jesus was not doing something sinful by eating with these people. However, we do know that cohabitation is sinful. There is a diference.
The prohibition is against causing scandal; scandal is (in the scripture and the canons) the appearance of sin, regardless of actual sinful activity
. Jesus wasn't sinning; but He was causing scandal (a recurring theme in His ministry - working on the Sabbath, touching those ritually unclean, etc.)... however, in His case, it was scandal for the "stronger" brethren (whom, I would argue, would be analogous to those pontificating here, since they seem to have a strong enough "grasp" on Christian morality and the boldness to teach others based on that knowledge) not the weaker, which is why St. Paul's argument didn't work against the Master of All. You don't actually know if Bogo is sinning or not, you just know that he is in a situation that appears to be sinful, or has the increased potential to be so. In cases like these, it would be best to just offer support, hopeful suggestion, and prayer. Like, I don't know:
Let's not forget that this situation is not exclusive to young adults. Middle aged and older adults are also increasingly cohabiting for a variety of reasons, such as:
-marrying would cause a significant problem among one or both of the couple's child(ren);
-marrying would affect their Social Security or retirement benefits (naturally, I'm only speaking of the US); or
-marrying would require new legal burdens such as updating wills, real estate deeds, etc.
So we cannot just assume that this problem is present only among the young. I used to regularly visit a home for older adults, and in talking with the residents I really think just as much if not more is going on there than in a dorm.
In the past, I have had to recommend that if the temptation is too great, maybe the couple should consider not living together, but even then that's not a guarantee of non-intimate conduct between the two. Ultimately it resides with what is important to the couple, and where they draw the line in their own lives. We can only pray that their behavior leads to their salvation, and that the Lord have mercy on us all.
No judgment, just caution and hopeful optimism, and the prayer for salvation.
If he is causing scandal to the strong (like people here), then no thought should be given to it. If he causes scandal to the weak, that is an issue between him and his Maker; I am sure (based on his comments) that he is doing his best not to scandalize anyone who can't handle it.We should probably move on, and focus more on our own spiritual problems.
Just for the sake of beating my point home (same source as above):
Matt 7:1-5 Judge not, that ye be not judged. For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again. And why beholdest thou the mote that is in thy brother's eye, but considerest not the beam that is in thine own eye? Or how wilt thou say to thy brother, Let me pull out the mote out of thine eye; and, behold, a beam is in thine own eye? Thou hypocrite, first cast out the beam out of thine own eye; and then shalt thou see clearly to cast out the mote out of thy brother's eye.