Absolutely, I see what you are saying.
For many religions, sex outside of marriage is unacceptable. However, if this couple don’t necessarily follow a particular religion, then they may not see the need to stick to the rule. There may be all kinds of reasons why he didn’t marry her before having sex. In the past, fans have reacted angrily to idols having relationships. He may have felt that as long as he was in Exo, he would not be able to marry. Further, he probably thought it wouldn’t be ideal to marry before going off to complete his military service. The average age in South Korea for a man to marry is 31. That’s quite high compared to some other cultures. I would imagine it’s maybe quite unusual to get married at a younger age. in fact, many South Koreans today are choosing not to marry at all.
These are all reasons why he may not have wanted to marry yet or didn’t think it acceptable to.
It might not be ideal to have sex outside marriage, but I don’t think it’s unusual at his age that he did. Within a loving, consensual relationship sex isn’t wrong or filthy. It is a perfectly natural expression of a couple's feelings for each other. This may be the only sexual partner he has ever had, or it may not be. We don’t know that.
Yes, it’s good to discourage sexual immorality but we also have to be careful to teach people that it isn’t something wrong or dirty. Wanting to have that kind of relationship at his age, is perfectly normal. In any other culture he may well have been married already.
It’s unfair to expect these idols to remain single for their fans. Everyone needs friendships and love in their lives. He shouldn’t have to hide that out if fear of what his fans may think.
