Returned gift watch goes viral on social media

I came across a phenomenon where someone gifted their fiancée a very expensive watch on her birthday but returned it a few days later. Everyone on social media has something to say: some are saying, 'they probably bought it just for show,' while others are saying, 'maybe they really don't have the financial means.' But honestly, it feels wrong for someone to do something like that just to show off. Or do you think I'm thinking wrong?