I see my boyfriend once a week, its rarely an overnight, but regardless, I don't contact my husband on date nights unless it is to say "I'm staying the night" or "I'm going to be home later usual". If I stay overnight there's always the chance I'll see him in passing when I get home if he hasn't left for work, but if not I send him an IM when I get home, I don't think 24 hours without speaking is an issue for either of us.
Certainly if I am with a non live in partner for more than one night, I'd make time to call at least once, or send a text a few times (texting not really my thing though). My boyfriend doesn't text his wife or gf while on a date with me (well he probably does but he does it subtly so its not distracting - though it wouldn't be a big problem if he took a bit of time to do so) and I appreciate it a lot, means I'm not sitting around twiddling my thumbs waiting for him to be free to talk to me. Not messaging a person you love doesn't mean you don't love them or aren't thinking of them fondly, it just means you're being attentive and polite to the person you are with.
Happiness will never come to those who fail to appreciate what they already have.