Okay so I'm a huge gamer. But I'm not going to lie dude was totally in the wrong. If you're going to get married you don't spend that much on a computer before you actually get married to your wife. She reacted pretty logically in my opinion.
Yeah, this was a bad move. Especially without communicating his interest in buying a new PC, and doing so secretly.
I mean, don't get me wrong, the webbing industry is a horrible and exploitative business taking advantage of a couple's desire to have a perfect wedding and encouraging many to go into huge financial debt or otherwise spend far beyond their means. Even diamond rings have an artificial value and rarity, with exploitive campaigning over the years saying one needs to spend two to three months' worth of your monthly income on a diamond ring. This not even going into the cost of wedding planning and the stress this brings, especially for brides.
Despite this, the guy should not have gone, it seems, behind his wife/fiance's back and allegedly spent $11,500 out of around $80,00 of their wedding and honeymoon money on a new gaming PC. Including it seems to spend all his time gaming.
The real issue is the lack of proper communication and seemingly hiding this purchase from her.