As someone who is starting a new relationship where we are literally 10,000km away, this is my new normal. I feel intense jealous, anger, sadness when we are away, and we are close I am filled with pure bliss. Pure emotion.
keep that communication channel wide open. be vulnerable. be realistic. spend time finding ways to get closer, if you want it to last. but those facetimes and letters and long distance virtual hugs are a really valuable tool for learning about your partner, and yourself, and each other in the absence of abundant time to spend together. good luck, it's hard. but if you feel the real shit, get super dirty and roll around in it as hard as you can. be vulnerable, supportive. write for yourself. and for your partner. and be vulnerable twice as hard as you think is safe... just don't be unpleasant. happy days.