All I can recommend is going to sleep, and letting the anxiety subside. If you have been prescribed sleeping tabs or Benzo's, use them.
I can totally relate to what you feel, as I've been with my Bf for nearly 5 years, and we've lived together most of that time. We are only really apart during working hours, and if we ever are apart for a night, I can really lose it. It can be lonely, but know that you are not alone. (I think these 2 things can be differenciated).
Know that your boyfriend loves you and will call as soon as he lands. Your friend obviously cares for you, and dogs...well.... they offer unconditional love. Hug and hold them.
I hope that call comes sooner rather than later

Hugs and strength to you.