How do you cope when ur SO leaves? Help..

I’ve been in a long-distance relationship for two years and 10 months with this amazing man from Ohio and seven days ago we finally met, for the first time irl, he came to where I lived ( Puerto Rico 🇵🇷) and we had seven days filled of love and passion and fun, he left yesterday and I drodropped him off at the airport. I miss waking up next to him, the house feels so empty, whenever I go take a shower I feel lonely, my bed still smells like him and I just miss him like crazy, I miss his goofiness & how he’d distract me from chores yet helped me with them.. he made me the happiest I’ve ever been.. & now I’m missing him so much that I break down crying.. do you guys have any tips on how to deal with the separation of the first meet..? I’d really appreciate it..