Advice please ladies about men/partners?

I'd like to hear some advice from you ladies with partners that you currently don't live with at the moment but text now and then..

My question is that I bound to start missing mine so much when we aren't together, I'm not saying this because I don't trust him because I do! But I don't want to come across to him like I'm needy and just want his attention by replying back very quickly to him.. but I've felt like maybe I have been over reacting to some extent and would like to have that feeling of him missing me and craving my attention a lot more, calling me etc. Is there ways I can do this by just not showing that I'm not begging? Do I stop texting him back so quick? Do I never call him and wait for him too? Tell him I'm busy? I don't know 😟