Tom and Sue, acquaintances through friends of theirs, got legally married, with no ceremony, in order for Tom to avoid being drafted to fight in a war. They barely know each other. They have not spoken to each other in a long time and (obviously) have no children. Neither wears a wedding ring. They plan to void the marriage as soon as the laws allow, with no further transfer of property between them.
Tom is a married bachelor.
There's a reason the term "bachelor" exists, and it's not to make Kant right.
This is just playing with connotations. A bachelor is an unmarried man, so one could say that Tom acts like a bachelor despite being married. He is not a bachelor, though. To show this has a practical implication, assume Tom met Mary: the two could not get married immediately. If he were a bachelor, they could. He therefore lacks necessary properties of bachelorness (most significantly, not being married), and cannot be a bachelor, even if he may live his life much as a bachelor would.
This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you've seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.