Re: Confused about husbands F buddy 😬
Yes, you should be aware, but I don't see that there is necessarily any reason for worry at this point. IMO, they are developing a friendship, so FWB, not merely FB.
I had a 5 year long FWB with a woman much younger than my wife. Your description sounds similar to what we had. We developed a friendship, and would occasionally hang out together or go somewhere as friends. Mostly we just had an evening of great sex and talked about the rest of our lives. Sometimes my wife would come along on the social times, but often not. Sometimes we'd both visit her at her place, or she'd visit us at ours. There was never any concern that she wanted me to herself - and she really didn't want that. We didn't communicate daily unless we needed to plan something, but probably did once or twice a week - we were both busy with other things, mostly.
If my wife every had concerns, I'd have backed off, fixed the issue of concern, or broken it off. Just knowing that I would do that was enough that she never needed to ask me to do any of those things. And I was very careful not to exceed reasonable expectations. Mostly, she was just happy that I was having a good time, as I'm happy for her.
Love is an ideal thing; marriage is a real thing; a confusion of the real with the ideal never goes unpunished. - Johann Wolfgang von Goethe
CELIBACY IS NOT HEREDITARY.