I don't know what property laws in Asia look like, related to marriage, but quite a lot of the US population is under the concept of "community property" where if one spouse buys something DURING the marriage, it is jointly owned, unless they really bend over backwards to maintain clearly separate money.
If they were assets that would be divided in a divorce, they were probably assets that either partner had the legal ability to unilaterally sell or even just discard (whether they were the one that bought them or not)