LDR struggles

I live in NJ and my boyfriend lives in PA and with college and everything going on it’s hard for us to see each other. I feel like recently we haven’t been talking as much as we used to and lately he hasnt been as affectionate like he used to be, and Ik relationships aren’t always like lovey dovey 24/7 but idk I kinda miss that feeling of being like loved??? Anyways do you guys have any advice for people in a long distance relationship?