I don't think you sound needy at all. Quite the opposite in fact. Even if your partner can't or chooses not to use his phone during the day, he could still send you a short text occasionally just to show he is thinking of you/seeing how you are. I think it does show a lack of effort and thought. Takes a few seconds to send a text. You're not saying you want endless texts all day long. You are saying it would be nice if he sometimes texted you during the day. If he knows that you would appreciate this then it's hardly a lot of skin off his nose to sometimes check in with a sweet text or something. Something to make you smile. It IS a turn-off is a partner gets lazy to the point of not even bothering to do little things that you want. My ex started to do that. Tiny little things that I wanted him to do, that were the easiest things in the world to do, but he wouldn't do it. Note the 'ex' part.
In fact, it's the tiny little things that can be the straw that breaks the camel's back. In my case it was socks!
With five adults or nearly adults living in the house I used to get totally fed up with the time it took to sort out all the socks. I used a sock bag for mine and got the kids that cared about having matching socks to do the same.
However much I tried to explain to ex that it would save so much time for him to use a sock bag, he refused. I couldn't understand it - it was a logical solution to the sock mountain which took hours to sort yet he simply wouldn't do it.
On a couple of occasions, when dirty washing had piled up, I decided to do it for him. His coloured socks in one wash bag, white socks in another. Put them in the drying cupboard and when it came to putting away the laundry I handed him the bags and said: 'These are your socks'. He looked at the bags and said: 'But they can't be. I don't use a sock bag.' So I looked him in the eyes and said: 'But I did it for you.'
Arrogant, selfish, narcissistic twat that he was - expected his wife to spend hours sorting through his socks.
Thank God I divorced him. It's the little things that matter.