My friends husband wattsapps me photos and videos quite regularly. We have daft (and very brief) conversations about the stuff he sends. They’re just humorous, they make me laugh and absorb some of the boredom from my day. I don’t want my friend to get the wrong idea (although I don’t think she would but might wonder why she wasn’t aware?), should I mention it to her? My own husband regularly has text conversations with another woman of which he doesn’t know I know (this isn’t the point of this post though), so I feel I should be honest with my friend (of which I am all the time anyway as she has trust issues) but I really don’t want her to think I’ve been coming on to him as he’s not my sort, I’m not his sort and it’s 101% platonic friendship on my side. I know how I feel knowing my husband messages this other girl and although not the same sort of messages, I’d hate my friend to feel the same. How to approach?