Is it my turn to text him first? Or should I wait for him? Guys opinions?

Anonymous
Me and this guy text each other quite frequently. We talked both last Sunday and Wednesday for over an hour (him replying within a minute of me sending a text..i took a little longer but basically we sent a lot of texts) Often times our convos are kinda ongoing, I'll have to go suddenly (I have to help my mom a lot) and won't get the chance to reply for a few days. On Wednesday we had a really great convo, but I had to go, but I did actually end it by telling him I had to go. He said "ok I'll ttyl =)" We haven't talked since and he hasn't texted me..Should I wait for him to text me? Or since I ended the convo am I supposed to text him first next? Guys what are your thoughts on it all? Do you like when girls text you first or do you like to do that if you like them?
Is it my turn to text him first? Or should I wait for him? Guys opinions?
3 Opinion