So as not to dripfeed, DH had inappropriate communication/behaviour with a woman some years ago which I couldn't prove was anything more than heavy flirting but strongly suspected it was. I am still with DH, obviously as otherwise I wouldn't be posting here, but as you can imagine there are some trust issues.
So, to the point of the post. I went on to my FB messages to post something to a group I've got set up but realised that it was logged in as DH. The first message was from a random woman and yes, I looked. It just saying "Hi, how are you?" which was sent yesterday. There were no responses that I could see, but I kept it on the screen and after a few minutes she came online, I then saw her original message disappear, only to be replaced with one that seemed a response to something DH had messaged her (also not present) along the lines of, "yeah, me too - unsurprisingly", that also disappeared before my eyes. Basically, it looks like they are speaking to each other on FB but he is deleting the messages as they go along - wouldn't you agree?
At the top of the message box it also said,