Would you be annoyed (description down below)

So my fiancée and I was very drunk Saturday and we met this guy he knew from years ago (his gay) and my OH kept leaving me on my own in the club. They have history where the guy sent my OH snaps of himself (my OH is straight)

Anyway my OH had a text this morning from the guy saying he really wanted to shag him and instead of my OH shutting it down he entertained it by carrying on replying. Now in my eyes that’s the same as a guy thats straight messaging me. I’m annoyed. So my question is would you also be annoyed?