Exactly. Sex outside of marriage wasn't as prevalent and accessible then as it is today. It happened, but not to the extent of today.
If you consider only adultery is mentioned in the ten commandments and only once, it kind of gives an impression of how balanced a view of sexuality there was. I dont see him as having had much of an opportunity to be a thief or anythng else either, he fufilled most of the commandments in a positive sense throughout his ministry.
You guys keep talking as if the idea of him being single is fact. You don't know that.
If he was, it would have been explicitly stated, don't you think? I mean, the point of the Bible is to show how God's purpose for mankind is to be fulfilled through Jesus.
Then there's the evidence that he was a single man, including him not having a permanent residence, and, as he lay on the torture stake dying, the woman he ensured care for was his mother- who was a widow at that point, and not a wife and kids.