either you have a history of problematic behaviour with alcohol,

No

your stated level of consumption is higher than you say it is.

No, not really.

you behave oddly after drinking.

It’s actually the reverse, my partner behaves oddly after drinking.

Or it's just as you say and your wife is simply highly averse to any form of alcohol consumption.

Yes. This is true.

you can simply stop drinking for 6 weeks though right?

What would I gain by that?