I have been seeing my FWB since October. We're both very busy, him with interviewing for his surgical residency and myself with work and school. We also live in different cities, so we don't see each other more than once or twice a month. But when we do it's always a good time. We have very similar humor, personalities and sexual preferences. We usually have very intense passionate sex, sit up and talk after and then if we both have time we will get breakfast. I love when he visits. We schedule it over a week in advance, I anticipate the entire thing and then we part and I feel empty. We  were both very secure in the fact that this had an expiration date and he will be moving in May to Miami where he was matched to his residency. I feel sad that I just can't enjoy it and it has to feel so terrible afterwards. Does anyone else feel this way?