Look bro, there is nothing wrong with var...here is the deal with it though...for a man to really have worthwhile gains from var you need to do 30-50mg ED of it. However I would suggest this type of cycle for you if you are worried she might get on to you.
If I were you try this:
-Var 30-50mg ED
-test 500mgs a week
-arimidex on hand if needed
-clomid post cycle.
You will get good gains for sure, tell the woman you are starting a new diet (which you should) and then tell her you are gonna try to eat more
protein than ever etc...
Run this cycle for 10-12 weeks.