My ex girlfriend

I'm still in love with my ex girlfriend,what do I do about this feeling,we had a good connection,she was stunning.I was young,she made mistakes,so did I.I can't stop thinking about her.She rang me a while ago.But I got drunk and it didn't go how I planned.I know she still cares.I mean,I cant stop thinking about her,we lived together for nearly 5 years and we were like Bonnie and Clyde.