It's a small world..

So, I was on the subway to Brooklyn on my way to present Software designs to a customer and I see a guy who looks familiar on the crowded train... I notice he's staring at me... Then I think to myself "O my, that looks like my first college boyfriend! But it just can't be.." I sneak glances to see if my suspicion was right.. and I notice he seems to be doing the same to me.. He gets off at his stop and I get off at mine and think nothing more of it until I get home from work. I do some Googling and let's just say, I'm pretty sure they guy I saw was that guy! What are the odds!?