I understand that it's difficult to be away with your husband, I feel the same way like you do
I accepted the fact that it will be this way so I keep myself busy with the things I need to do. When we talk he's the sentimental one and I tried my best to cheer him up. We both know that this is just temporary and we are both willing to wait
Just keep being in love
It would help as well to keep yourself busy with your kids or work. That would be fun and that way you will not feel sad being away with your hubby. And if you have more time grab an interesting book to read or find some activities this summer that offers workshop or trainings that will help you enhance your skills or add some more knowledge that would be very useful when you will be in UK
