@ElectraBlue
Are you 13 or 14? because as a grown woman I really don't need someone to text me all the time. It just becomes tedious to exchange pointless messages and it is hard to keep these type of constant conversations going beyond the banal. I don't think he is the issue here. You need to ask yourself why you need this constant reassurance. Instead of judging the guy on his texting, judge him on the fact that you both have a great time when you are together.
The guy I have been dating loves to chat throughout the day but it is not my style so we meet somewhere in the middle. We exchange a few messages and keep it fun but no one has a fit if the conversations are not very long or if they don't happen every day....
This ^ It's bizarre how people want/need to communicate all the time like this, like every day. It baffles me when someone says they call their mum every day. I mean, WTF?

It must start to feel like a chore after a while.
Me, and my DD (who left home some 8 years ago,) speak on the phone or meet in real life once a week (she lives 20 miles away,) but we do communicate on twitter and whatsapp a couple of times in the week in between. If we were to feel like we HAD to speak on the phone every day, I think it would lose its spark, and would possibly start to feel like a chore.
Before I met my DH, I had several very needy, VERY clingy boyfriends, and the whiny, clingy neediness, put me right off them. It was before texting/mobile phones/emailing/the internet, but they used to ring me every day, and come to my house uninvited and unexpected. And they'd wait for me outside my works at lunchtime, (again uninvited and unexpected,) and trail around the town centre with me, like a fucking shadow... So off putting... 
I started to tell my mum to say I wasn't in when they phoned or called around, and then I stopped going into the town centre for lunch. Took me a number of months to shake them off because I didn't have the heart to say FUCK OFF! 