It's breaking my heart

So our very close friends are moving to Texas this weekend. Jehremy's known Rob for a good 20 years. We've lived in the same apartment complex for the last 5 years...basically Kyle's whole life. He plays w/their girls almost daily. The last few weeks have been hard on all of us...randomly thinking of the everyday things we'll be missing when they leave. Kyle and Rob have had a very close relationship. Kyle LIVES for playing Xbox with him. Today Kyle spent the entire afternoon/evening helping Rob finish packing up some things and loading the truck. He was in heaven. Then I think it all hit him tonight as he was going to bed. I could tell he was trying to hide the tears from me. But when I asked about it, he completely broke down. I cried along with him. It's one thing to deal with the sadness for myself, but when your child has a broken heart, it's absolutely crushing. I just want to take the sadness away, but I can't. Over the years, pretty much every single close friend Jehremy and I have had has moved away. Far away. It took me a good 2 years after our last close friends moved to Arizona just to not cry everytime I drove past their old house. But this time there's a whole new factor...Kyle's personal loss as well. I don't know how much more I can take. I'm to the point where I really have no interest in making new friends...it hurts too much when they leave. I KNOW we'll still be in close touch. But it's the day-to-day moments that I'm going to miss the most.