Can someone explain WattsApp please.

[Lillieloola]

So a close friend of mine has had an operation today for cancer . Obviously I cannot contact her to find out how she is . We spoke last night and had lunch together on Wednesday,so just to emphasise how close we are .
I have not had contact with her controlling husband for ages because he is not someone I need to normally speak to .
Anyway I thought I would contact him on WattsApp for the first time to ask how friend is . When I went onto his number I now can see all my messages that I have sent friend.
I thought WattsApp was confidential and encrypted.
Can someone explain how this has happened? Luckily absolutely nothing incriminating from my messages ,but am wondering how he can see my messages !!

They share a phone?

Have you saved your friend’s number under his name by mistake?

Yeah, the only way you'd be able to see what you'd sent your friend on WhatsApp would be for them to share a phone. She should've told you that, just in case you did say something you wouldn't want him to know about.

I have just checked . Numbers are different. I contact my friend regularly but have only recently been using Wattsapp. Just very strange. Friend is not aware that I am not a fan of the husband because she worships him 🙄
We have very different political views and I find him overbearing TBH .
It has really creeped me out TBH .

They definitely don’t share a phone that I am aware of . Think I will message him on his number and see if he reads it. Feeling very uncomfortable about this!

I don't understand this at all. If they don't share a phone, does she have some sort of group set up with him so that they can both see messages?

It must be set up as a group chat.

I also think it's a group, it's the only explanation.

Thank you for all replies. Obviously this is not the time for me to mention this to my lovely friend. Have checked her Wattsapp and absolutely no indication it’s a group chat. Shall wait until it is an appropriate time to raise this. Still think that she probably doesn’t realise and her husband set the phone wattsapp for her .
She doesn’t even understand bloody FB so I think he is the culprit 🙄