Texts should never be conversations. I'll call someone if they ask me a question via text that can't be answered by a short sentence. The only time I'm alright with texting more than a single exchange is if they're doing it in a place where they can't talk (class, conference) or a place they can't hear (concert, loud bar). Other than that, fvck you and your conversational texts.

This being said, I would never initiate the text and then call. Just call in the first place.