Yes, we do established new foundation of friends in abroad but it is still incomparable to the friends you grew up with back way back home. You will be missing the silliest things you had experienced together, from the gossips to petty fights and all the funs you shared with them. Also, you will also miss important occasions of your friends, their weddings, reunions, and gatherings. The next day, you will feel more bad in seeing their pictures so happy together. It is the price of working abroad,I guess.