My fiancé can’t explain where his money goes

He has been unemployed since last year due to Covid. He got some government benefits amounting to $6000 or so. We haven’t been on any extravagant trips or done anything expensive since then. I noticed today he only got paid $399 in government benefits and asked why it was lower than usual. He said he got an advanced payment (loan) through them because he thought he needed the money (the fortnightly payment is then decreased til he pays the loan back)

I asked what happened to the extra $6000 which should’ve been saved up and why he needed extra money. He just shrugged. He gives me $200 a fortnight towards bills and food, then has a $80 monthly phone bill to pay but that’s it. He barely goes out. He doesn’t smoke, drink, or do drugs. He doesn’t shop online or receive any parcels. He plays a lot of video games (especially mobile games) but surely he hasn’t sunk all that money into games?!

What the hell could he be spending money on?! Whenever I ask all he does is shrug! I don’t want to be a controlling bitch but.. would it be too much to ask to see his bank transactions?