I am a Graduate Student, Male. There was a guy in my batch whom I considered my close friend. We had hell lot of simmilarities. So naturally I felt close and friendly. But he dropped out of PhD in the first year itself. I thought we will have fun for next 4 years as well. It has been 10 days now and I am not feeling good. I am feeling lonely. I won't find someone so close anytime soon. atleast won't find anyone as such during PhD. I thought he will be there with me during PhD and we will have lots of fun but, now what should I do🥺 Also he hadn't even messaged me once after he left. what should I do?