Separated on Opposite Subway Trains in NYC

me and Nikki were in NYC and leaving Andrews in the morning or something and had almost a full free day so we were thinking about what to do while we went to the subway. We were talking about going to Jersey or Coney Island or something like that that were 2 opposite directions. We couldn't really agree on anything and a transfer train pulled up and Nikki got on while we were still deciding what to do and the doors closed and I was still on the other train going the opposite way. we kinda blew kisses to eachother thru the window and then the trains departed, both going opposite ways. We were underground so cell service wasn't working so I was trying to figure out what to do. My train was going up to Jersey or the Bronx so do I stay on and hope she meets there? Do I follow her and go back south to Coney Island? Do I just wait till this train gets above ground and try calling her? Or do I just go back to Penn and LIRR back home to Northport and hopefully she has same idea and I meet her there? Woke up while pondering.