"The text that revealed my husband had sex with my friend."

Image via TSG Entertainment.

I will never forget the moment I found out my husband was cheating on me. In fact, the memory will never leave me. Every feeling is as fresh and raw as the day it happened.

It started after I found a text message on his phone from a woman I’ll call Margaret.

Margaret and I spent most Saturdays together with our boys at junior rugby league. Our kids had grown up together and gone to the same school. We’d worked side by side at the tuckshop and spent hours in the car, travelling to sports carnivals on weekends. Our friendship was solid and long-lasting. Even when our boys finished school we’d get coffee and catch up at yoga every Thursday.

RELATED: These are the 7 types of people who are most likely to cheat. (Apparently)

So naturally, I was curious when I saw her name flash up on my husband’s phone as it lay on the kitchen island. He’d gone to the loo, it went off, I checked it. Why wouldn’t I? We’d been married for 25 years. I thought we were happy.

The message was simple: ‘L8ter 2nite’. (Post continues after gallery.)

He walked out of the bathroom, his shirt half tucked into his undone pants. He looked at his mobile in my hand and raised an eyebrow. Slowly he strutted over to me. ‘What have you got there?’

I exploded.

‘Are you having an affair?’ The trembling in my voice was out of control.

He half laughed.

RELATED: This is the age you’re most likely to cheat.

‘Tell me, are you having an affair?’

‘I thought you knew,’ was all he could muster.

My husband. The father of my two sons. The man I had started growing old with had been having affair with one of my best friends – and I was the last person to know.

My life fell into tatters around me.

‘For how long?’ I asked.

The details were messy, things that nobody should ever know came up. The reasons were both disgusting and troubling. My question opened a waterfall of emotions he had never thought to discuss with me.

For the most part, I’ve blocked them out of my memory because just thinking about them, let alone writing them, still to this day makes me want to vomit into the nearest pot plant.

But this is what I learned in those brief, shocking moments. For 20 of our 25 years together, husband dearest had seen a few different women.

RELATED: The 4 common signs that your relationship is about to fail

Some, like Margaret, were my friends. I knew most of the others – I’d chat with them in the street or had business dealings with them. One friend – who says she never acted on the invitation – was propositioned by him. I spoke to her every day and she never mentioned it.

The details were tawdry. Liaisons would take place at the local AFL ground. In the back of his car, and in our house, while I slept mere metres away.

And I had no idea. (Post continues after video.)

I had heard rumours, but always dismissed them. My girlfriends had also heard rumours. But they hadn’t thought to tell me. Or wanted to tell me.

Seven years later, I still can’t think about it straight.

Margaret denied every detail of it. Even when I wrote an email to her husband informing him of her ‘adventures’, she still denied it.

RELATED: The science of a successful first date - and a happy relationship.

She’s still happily married. She still says nothing happened. But that text, and my husband’s stark admission that he’d done it for the sex but should be forgiven because, after all, he ‘always came home to the family’, prove she’s lying. Disgusting woman.

But over the years I have let that go.

What still haunts me is the fact that no one had the heart, or the guts, to tell me. So much for the sisterhood.

The people who were supposed to have my back the most (apart from, you know, my spouse) just didn’t.  I was left feeling like a fool. A fool who couldn’t trust anyone.

When people found out I finally knew what they had for so long, some tried to call me. Some even visited me in the motel I moved into.

When I asked them why they had chosen not to tell me, their answers were much the same: ‘We didn’t want you to get hurt’, ‘we didn’t know for sure’.

Sometimes I pressed them for more – if they had been in my shoes, wouldn’t they have wanted to know? Didn’t they know me well enough to know I’d want to know? Surely someone thought they should at least bring up their suspicions with me?

RELATED: The science of a successful first date – and a happy relationship

All of the answers meshed into one ‘Oh, but you know, it wasn’t our business.’

Let me tell you this. If you love your friend, if you want to protect your friend it is your bloody business. No matter what.

That’s the one lesson I have learnt from this horrible situation. If I ever find out that one of my friends is being cheated on, and I could prevent her from feeling humiliated, I would tell her. I would tell her everything I knew.

I wouldn’t wish my situation on my worst enemy… not even on Margaret.

Have you ever had to tell a friend their partner was unfaithful?

This article originally appeared on Debrief Daily. Read the original article.