He wrote to me saying that he would not text me again.

Which was reasonable and showed that while sleazy, he is not completely without appropriate manners. This exit was easier for me - I just wrote 'sure thing and enjoy the holidays' - and for him, because he was in control. It feels better to say "I won't text you anymore" than to keep texting without response until you realized you have been blocked. So he is actually with it, come to think of it.

He once again apologized and explained that the text about the dress was meant for a friend who invited him to an event where they were supposed to be dressed formally.

I did not buy this explanation but of course did not say that. He needed a decent way to exit and he got it from me.

@hankster - the last communication was full of "apologize to sending you that text in error" and other little incidents of misuse of prepositions and particles. Once again, you were spot on from the start.