Currently a male colleague, who I know is married with 3 kids, is messaging me. We have a banter-type working relationship but also a friendship. I work in the same office with this man and our work means we cross paths every few days. Initially it started off very professionally but he has said a few things that have made me stop and wonder 'what exactly is he thinking?' - I've had compliments on my appearance and it can get flirty at times. I just think that is his personality though and he has a very laddish-type nature with male colleagues.
I like this man, not romantically, but as a person and friend. I am happily married with my own family and he knows that and I would never do anything to risk it. Ive spoken to him about my husband and my child in endearing ways, so if anything, in my head I am putting it out there that I am content, secure and happy with my relationship etc. He too has spoken of his wife and children in favourable way as well which makes me think its just all a bit of banter. Also, as stupid as this may sound, I generally get on better with men than I do women. I have a very close group of friends who are a mix of male/female but usually I find female work colleagues very catty towards me despite me being exactly the same with men and women - and I've never known why this is. So I have never seen my friendship with him as being an issue.
If he crossed a line with suggesting anything, or put me in a position where I thought he was acting in a way my husband wouldn't appreciate, i would stop messaging him, the lunches and all communication apart from anything work related immediately. We too talk about a range of stuff, initially started with work but has gone off to a range of topics but it is just friendly chit chat in my eyes. We just get on like good friends. Admittedly, he texts me first, like 99% of the time. I never really thought badly of it but I would feel horrible if his wife felt the way you feel of our communication.
That said, i have never met his wife, but if I ever do I would never feel I had to be anything else but me. Do you think there was an element of her not wanting to make you feel threatened? I dont know, just making a suggestion.
If you feel really strongly about this, perhaps bring it up with your OH. Good luck, honestly I hope its nothing but good to hear your perspective on it.