Thanks GeetaKashyap, your reply gave some solace. Now more than that longing/yearning/missing feeling, it is that guilty feeling that I am thinking about another man all the time, is giving me more pain. Now I have come to an acceptance that "Yes, I do like him, I cannot stop my heart from the way it feels, it is what it is. All I can do is think with my head and try to forget this and move on. And I am happy that I didn't act on my feelings in anyway, I didn't go for his farewell knowing that I am being too emotional and I cannot handle it seeing him leave. I did not try to meet him alone, deleted his goodbye email that he sent out to the entire team with his personal contact info.