She explains: 'I'd never even slept with anyone other than my husband, and suddenly I found myself using sex with men to make me feel better about myself.' Judy joined a couple of internet dating sites and found it surprisingly easy to meet men in their 40s and 50s who wanted no-strings flings.
'I didn't always use protection - caught without any, in the heat of the moment, I threw caution to the wind.
Then I discovered I had chlamydia.' You'd be forgiven for assuming that Judy is an irresponsible 20- something, heedless of the consequences of her actions.
There was no suggestion of seeing one another again.
'I thought I was fine with what had happened, but a few days later all I could think about was that I'd slept with someone other than my husband.
She says: 'Thankfully, I'd kept myself in good shape and I'm still a size 12, but the idea of whipping off my smalls in front of a near-stranger was pretty terrifying.
'The first man I slept with was a 50-year-old lecturer.
But it's primarily down to the significant increase in people getting divorced after the age of 45 - forcing flocks of inexperienced divorcees out into the dating world after decades of monogamy.
Between 19, divorce in England and Wales in the 45-plus age group rose by more than 30 per cent.
For me, in my 50s, the idea of taking my clothes off in front of a man who wasn't my husband was absolutely terrifying.