How to ask my boyfriend to give more effort?

My boyfriend and I have been together for a little over a month. He lives two and a half hours away so once a week we both drive around an hour to meet up for a date. (I usually have to drive longer than he does) Of course we are still learning about each other because it’s a new relationship but I feel like he’s not giving the same effort I am. Since we are technically long distance we rely on texting to communicate, but he’s very dry with his responses most of the time, and doesn’t ever facetime me for long. I expressed that I felt like he wasn’t putting in enough effort while texting and I was struggling to feel connected, and he apologized and said he just wasn’t raised to really text (we’re both 19 and were raised in households with plenty of technology). He made an effort for about a day and it’s now a week later and he’s back to being dry with his responses and cycling through the same handful of answers. I don’t want to seem clingy or needy so I haven’t brought it up again. How should I approach this?