Let's imagine a scenario where everything is great (sex, intimacy, no flakes). My question is if you should now and then invest via texting (for example sending a picture of a recent activity). I have the feeling sometimes when I act non-needy (or actually am non-needy) and use text only for logistics this leads to an overall worse outcome in terms of intimacy.

The girl then basically adapts your text behavior and invests nothing (only logistics).