Why doesn't my boyfriend use punctuation when texting and chatting, and all of them are spaces instead?

Details and habits are related to personality. In terms of input, typing is really faster than punctuation. He wants to be faster. This may be a personal habit. For example, I always use punctuation when chatting. First, I get used to it, and then the meaning of a poor punctuation often changes, for fear of misunderstanding. If you don't like his habits, you can tell him. If he pays attention, it's nothing.