NC as could be outing.
DP received a FB message from his ex this morning (split up about 9 months ago and they were together about a year). The message was a screenshot of a FB post from a year ago (nothing sentimental) and just said "made me chuckle. Hope you're okay". I said it seemed fairly innocent message and I didn't mind if he replied (not that I was giving him permission or anything). He got really annoyed about that and said I was naive for thinking it was innocent and it was strange that I didn't mind him replying. He acted like I was telling him to go and have sex with her.
Anyway, my question is am I naive and strange??