I hate to but i've NC'd due to this being so obvious as I'm including an exact text.
SO:
On Saturday night around 9pm DH's work colleague (younger, female) sent him a whatsapp saying "I bet you get bored having sex ;)"
Conveniently (or not) I was actually on his phone at the time as me and DD were playing a game on the phone (DD is 4 and didn't read this FYI).
I obviously immediately asked DH wtf this was, and he claimed to have no idea. There was no previous message thread with them so nothing incriminating. I stupidly messaged her myself to ask what this was, which she replied about an hour later to say that she was really sorry and she and her friends were drunk and she hadn't meant to send the text. She followed this up the next morning with another message saying she was sorry and really embarrassed about it and it meant nothing.
The whole time, DH has claimed to be absolutely clueless about why she would send this and also said she must be drunk and she has a bit of a reputation for going out and drinking etc.
Anyway, cut to now and for whatever reason I just feel very paranoid about this and feel unable to accept this means nothing. I don't know why but I just feel it is so bizarre for her to send him with absolutely no context. I have actually asked friends I have made from DH's work what they are like together at work. Nothing incriminating has come out of it apart from that they are friends but nothing more. I personally feel that DH has acted slightly shifty about it but nothing I could put my finger on, more just gets annoyed at me for keep bringing it up and asks what I want him to do about it.
AIBU here?