First Marriage - when it got to 3 months of no sex, I stopped counting and stopped asking.
When it sudenly went to sex twice a day and a shouting match when I asked why the sudden change, I realised she was having an affair.
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Fast forward to the present day.
Some days none, some days several - generally not more than a couple of days go by.
We've been together for 2 1/2 years, and maried for 5 1/2 months.