Should I say anything to my friend?

Say nothing and you know nothing. Do you?
Were you not too busy making sure all glasses were filled and every one enjoying themselves?

I hardly think that if they ARE having an affair they would be broadcasting it at your party! As others have said let it go...!

There's always the possibility you may be right. However, right or wrong, none of your business.
Anyway, what's wrong with a bit of flirting. Flirting doesn't constitute a full blown affair ......
Don't give it another thought ...

Think the alcohol has gone to her head ....maybe loosened her inibitions a bit. Don"t invite the same couples at the same time to any other gatherings you have. Don"t mention it to any of them either. It could cause trouble or embarrassment all round.

I don't think there is anything wrong with a bit off flirting at parties as long as everyone goes home with their own spouse.
If I felt my husband was going a bit far I'd just go & sit next to him. Maybe his wife gave him hell when they got home.
Keep well out of it.

I totally agree with everyone else that it would be a mistake to say anything, the "flirting" was almost certainly just drink fuelled - and it is absolutely not your fault that this took place at your party - they are adults aren't they? (Albeit intoxicated ones!)

Stay out of it. If he's prone to do that when he's had a few his wife will already know and won't be happy that someone else has noticed it. You might find yourself being asked why you were watching her husband.

Best to keep quiet at this stage. It's probably nothing at all.

Just remember that once you open up a can of worms they cannot be put back in again,as stated it would be very strange if the wife was not aware of her hubby's close conversation with the said lady of interest we wives do tend to know everything that is going on at parties.

Don't blow it up out of perportion, nothing wrong with being tactile. It will cause friction between you all, trust me been there and my friend never spoke to me again.

I am not sure I agree flirting is harmless but from my own experience I would probably not get involved at this stage. I once found out my best friend’s husband was having an affair with a much younger friend of a friend. I told my friend and my life was ripped apart. I not only lost her but all our so-called friends turned on me and I mean turned on me. I was called names, I was labelled as a trouble maker, I was accused of being jealous and making things up. Their kids were not allowed to play with mine. The husband went for me. It was even suggested I had made it up so I could steal her husband. I had only told my friend but she told every one even post stuff on social media. I nearly had a break down over it.
It turned out that my friend had known about it but had turned a blind eye. He left her for the other women when she became pregnant a while later.
My friend wrote to me and said “you should have let me deal with it in my own time if I had of confided in you that would have been the time to tell me.” I never wanted to hurt anyone but that’s the way it was perceived. At the time I just thought if it were me I would want to know. I thought I was supporting my friend.
My friend contacted me last year asking if we could put it behind us and that she had forgiven me !! I had been so badly hurt and lost the whole network that I have just walked away now. So, my advice is say nothing if you need advice or to confide in anyone share it with your husband I wish I had confided in mine.

I agree with others, stay out of it. You won't be thanked for it. It may have been a completely innocent drink fuelled flirt.

If you noticed it, I'm sure his wife did too. There's not much goes on at a party that a spouse is not aware of.

Anya lol!

Am I too old to flirt? Probably, unless there are any septuagenarians out there who are up to a bit of repartee innocent knee-touching.

Yes, keep out of it, as tanith says 'they shoot the messenger don't they?'.

Personally, I would keep well out. Not worth losing either friend due to alcoholic flirt.
If things develop, I might feel differently, but say "I wondered if something like that was happening"!
No, least said, better done.

Keep out of it you will probably be the one who ends up in the bad books I would keep my thoughts to myself

Don't even know why you're raising this one. You're making all sorts of assumptions, and even if there was some mild, alcohol-induced flirting, it's actually none of your business. Keep well out of it..

Oops, replied to,the wrong thread, ? sorry

I remember once a guy I was chatting to in the office getting up and leaving suddenly and someone pointed out I had my hand on his knee! I hadn't realised he would take it any other way than me being me - not flirting at all! I was horrified but never found myself able to explain it to him without making it into a thing ....
It could have been perfectly innocent. Please don't stir x

What a cheek! Best to nip this in the bud now. I often buy school items and uniform clothes for granddaughter but it is by no means taken for granted and gratefully accepted when I do. Also, are these kind of shoes allowed as part of the uniform?

I hate when this happens... I was hit on by the host of his wife's landmark birthday of all times! So while I think it's stupid drink driven juvenile behaviour... they are not worth the aggro. If there's something going on for real, it will show itself. Hopefully not at yours next time! Not your fault or your responsibility.

I had a friend who flirted a lot with me and I flirted back. It became a joke so much that at the wedding reception for his son he introduced me to the bride's mother as "my other wife". No harm in it at all.I was close to him until he died.
If there is anything wrong with your friends it is nothing to do with you.

Stay out of it. It is none of your business.

Keep out of it but take note in the future if you have to . They may have been having a heart to heart ,talking about some thing dad that was happening in their lives of some sorry they have ,they may have just been talking something they saw on the tv which moved them , so many different scenarios it could have been.
You would probably end up with 4 fewer friends if you said anything.

Hand on leg Ignore it!