Name changed because Dp knows my usual user name.
Me and Dp separated a while ago for a few months, it was my decision and he was very upset about it. In that time he was seeing a woman from our friendship group, it was very casual and he told me about it at the time. We have Dc so still saw each other.
Trying to keep things brief, but we ended up back together and they obviously ended their thing.
Throughout us being separated I still spoke to her and her me, no bad feelings between us or anything. But when we got back together she blocked us both on social media and hasn't spoke to either of us since, or so I thought.
Turns out that she's been speaking to Dp since the new year and been messaging him quite regularly. Now he's shown me the messages and nothing seems untoward but he didn't tell me because she asked him not to, and I don't think I'm ok with that.
He thinks I'm being silly, says they're only friends and he really didn't think I'd be bothered. He wants to carry on as he was, but I'd rather he stop messaging her or at the very least inform her that I'm aware that she's talking to him.
And apologies, I know it all sounds a bit juvenile, I'm generally easy going and happy with him having female friends. But this is niggling at me and I'm not sure if I'm being silly being bothered about it or not.