Long Distance Love

My boyfriend and I met over Tinder. He lives two hours away from me in another state and it is very hard for us to have quality time together now that school has started. He is very busy, where as I have all the time in the world. He has not been putting very much effort into our relationship any more and I am starting to get tired of him not trying. I feel like it's time to let him go, but I'm not sure how to go about it...