This is handy to know haha; the only reason I'm learning swedish is for a girl :)
I decided to take a stab at it and mistakenly likened 'vacker' to 'wakker' in Dutch and put 'awake' :) That'll teach me for 'vacker' is a most essential word to know :)
I had the exakt opposite problem with Dutch once. Well, one learns nonetheless! :)
they are cognates !! but for some reason waccor/vakr ceased to mean "watch" and became "beautifull"
Is the voice pronouncing it right? I keep hearing "du var vacker" instead....
It's a boring answer, but there's no really good preposition to use in Swedish here. You'd have to go with e.g. enligt mig - "according to me", or rephrase it.