Long distance Advice

Hey guys! So I need some advice...

About 4 months ago I was going to delete tinder when I had one un read message from a cute guy. He seemed really nice so we started talking. We have never met IRL. After about a month of getting to know each other he asked me to be his girlfriend. He is in the Air Force and was currently serving a deployment in Korea. He was suppose to come home in January but that’s another long story. We video chat every day and night as best we can due to time differences! He just moved to his base in Germany! We have been together for 3 months and he finally said I love you! Now here’s where I need advice. We haven’t video chatted in almost a week now but we text everyday. The farther we have gotten into our relationship the less we have been able to talk. Do you think it’s just the time difference and the nature of his job? Or do you think he’s losing interest? Both of our parents know we’re dating each other as well as our friends. He comes home in July for leave and we are going to spend a week together, I’m just super nervous that he is going to find another girl or that I won’t be what he wants. Any advice would be nice😊